Backed by Adam Levine on guitar, 15x-Grammy winner Alicia Keys delivered a captivating performance of "Holy War", one of the standout tracks on her newly-released album 'Here', which debuts at No.2 on this week's Billboard 200. Watch the emotional performance below:

Last night (May 24th), 'The Voice' crowned its tenth winner in an epic two-hour finale that saw Alisan Porter win the singing competition, which has yet to create a star, and coach Christina Aguilera score the first win for a female coach in the show's history.

The finale included performances from Ariana Grande, who teamed up with Aguilera on "Dangerous Woman", Zayn, who performed "Like I Would", and Little Big Town, who performed their new Pharrell Williams-produced single "One of Those Days". Watch below:

With her signing on as a judge for the show's upcoming eleventh season, Alicia Keys made an early appearance on 'The Voice' on Tuesday, to perform "In Common", the first single lifted from her forthcoming sixth studio album, which will arrive later this year. Watch it beneath:

As 'The Voice' begins to wrap up its latest cycle, coach Blake Shelton is upping the promotion for his latest single, "Lonely Tonight" featuring Ashley Monroe, by performing it on the latest episode of the reality competition and 'Jimmy Kimmel Live!'.

The single is lifted from his latest studio album, 'Bringing Back the Sunshine', and stands as the highlight of an otherwise disappointing set. Watch both of their performances beneath:

After a dramatic performance on Sunday's American Music Awards, Taylor Swift returned to 'The Voice', after serving as an adviser earlier this season, to perform her No.1 single, "Blank Space", which made her the first female artist in history to replace herself at the summit of the Billboard Hot 100 when it took the place of "Shake It Off".

Following the performance, the 24-year-old superstar chatted with host Carson Daly about having the chance to advise this year’s contestants and see them progress throughout the season.

R&B superstar Usher broke the streak when he became the first coach other than Adam Levine or Blake Shelton to lead one of his team members to a victory on 'The Voice', but before he led Josh Kaufman to the sixth season's title, the crooner teamed up with the Maroon 5 front-man for a duet performance.

Fully clothed (unfortunately) and taking on D'Angelo's classic "Untitled (How Does It Feel)", the studs utilized their falsettos with Raymond taking the lead for a bulk of the performance. Not as good as the original, but enjoyable. Watch their cover beneath:

R&B superstar Usher delivered his first performance of his new single, "Good Kisser", on Monday's episode of 'The Voice', where he currently serves as a mentor to the contestants.

As his fellow judges (Adam Levine, Blake Shelton and Shakira) watched on, the 35-year-old hunk dazzled the crowd with a energetic performance that highlighted both his slick moves and vocals at different times. Watch his performance and sound off beneath:

What an epic moment!!! Putting their long standing rivalry aside, Lady GaGa and Christina Aguilera united on stage and performed "Do What u Want", the latest single taken from the former's No.1 album 'ARTPOP'.

Clad in matching outfits, the two pop diva delivered a rousing performance with GaGa's vocals surprisingly sounding just as good and Xtina serving up enough fierceness to fill Madison Square Garden. Watch the two superstars bring the house down beneath:

Fresh off their Emmy win for Outstanding Reality-Competition Series, 'The Voice' kicked off their fifth season premiere with original judges Christina Aguilera, Blake Shelton, Adam Levine and Cee Lo Green performing "I Love Rock 'N' Roll".

Honestly, the award is a little surprising given the show has failed to produce a star and 'American Idol', which helped changed the landscape of television, never took home the covet trophy, but congrats all the same. Later in the season, iconic artist Cher, songwriter Ryan Tedder, and breakout stars Ed Sheeran and Miguel will link up with the coaches to help prepare their teams for battle. Watch their performance beneath:

Showing off his versatility as a performer, Usher opened Monday's episode of 'The Voice', with a performance of "Twisted" and as usual, the stud put on dynamic showcase that left the crowd in awe and his co-mentors fully engaged.

The single is lifted from his latest studio album 'Looking 4 Myself', which started at No.1 on the Billboard 200 last June and ranks as the second lowest-selling album of his career with less than 500,000 copies sold. Maybe, this dazzling performance will encourage some of those who missed out to finally give the stellar album a listen. Watch it below:

The ratings-improved third season of 'The Voice' came to a close this week with Cassadee Pope edging out Terry McDermott to become the youngest and the first female competitor to win the competition.

In addition, her win also gave coach Blake Shelton his second consecutive win in the music-based competition, which he still refers to as his side-job despite his music and touring career seemingly taking a back step.

Aside from Pope taking home the title and a recording contract with Universal Music Group, the finale also featured some performances from three of the biggest names in popular music.

Rihanna was first up to bat with a performance of "Diamonds", the lead single and No.1 smash from her seventh album 'Unapologetic'. The single is currently enjoying its eleventh week atop the Billboard R&B/Hip Hop Songs chart.

While she avoided some of the high notes in the song, the performance is the latest reminder that the singer is finally learning how to use her voice and control the nasally sound that plagued her performances early in her career as a artist.

Kelly Clarkson hit the stage next with finalists Cassadee Pope and Terry McDermott for a performance of her latest single "Catch My Breath". Dressed in an ill-fitting black ensemble, Clarkson showed the two contestants how a seasoned pro with over a decade of experience in the industry works and as always, her voice was spot on.

Bruno Mars was the last performer to hit the stage and this was a truly a example of saving the best for last as the crooner soared above all of the other featured musical guests with a stunning rendition of "When I Was Your Man".

The song is taken from his perfect sophomore studio album 'Unorthodox Jukebox', which exceeded expectations and started off at No.2 on the Billboard 200 with 192,000 copies sold (more than triple the first week sales of his debut album 'Doo-Wops & Hooligans').

During my absence from the blogosphere, America faced yet another horrible tragedy with the death of twenty-six individuals in Newtown.

On Monday's episode of 'The Voice', the show opened with Christina Aguilera, Adam Levine, Blake Shelton, Cee Lo Green and host Carson Daly joining the season three contestants to sing "Hallelujah" in remembrance of the victims with each person holding a sign with a victim's name and age on it. Watch the coaches' performance beneath:

Following her less-than-stellar performance at the 2012 American Music Awards, singer Christina Aguilera returned to her other job as mentor on 'The Voice', to perform "Just A Fool" with country superstar and co-mentor Blake Shelton.

The song has been announced as the second single from her newly-released 'Lotus' album and the performance follows last week's eccentric showing of "Make the World Move" with Cee Lo Green. Watch the duo sing their duet live for the first time below:

With her 'Lotus' album currently in stores, Christina Aguilera stepped off spinning choice as mentor of 'The Voice' and onto the stage to deliver a pitchy and off-key performance of "Make the World Move", before the live audience.

Joined by Cee Lo Green, the performance started out on a good note, before taking a turn for the worst as Aguilera elevated her voice and tried to hit notes that were clearly not within her reach at this particular moment in her career. Watch the outing beneath:

The Voice returns with the strongest vocalists from across the country invited to compete in the blockbuster vocal competition show's third season. Celebrity coaches Christina Aguilera, Cee Lo Green, Adam Levine and Blake Shelton return along with Carson Daly as host and Christina Milian as the Social Media Correspondent.

The show's innovative format features three stages of competition: the blind audition, a battle phase, and finally, the live performance shows that lead to crowning the champion.

Consummating up their successful second season, former Alicia Keys' back-up singer Jermaine Paul was announced as the winner of 'The Voice', receiving a recording contract with Universal Republic Records and a cash prize of $100,000.

Additionally,  Justin Bieber and Lady Antebellum stopped by to perform their new singles "Boyfriend" and "Wanted You More", respectively. Watch below:

The mentors took center stage on 'The Voice', last night (April 16th). Christina Aguilera belted out her hit "Fighter" (with her team) and Maroon 5 premiered their newly-released single "Payphone", alongside budding rapper Wiz Khalifa.

Christina, Christina, Christina! Why do you continuously do this to yourself? Not only was the outfit unflattering, but the vocals were screechy and strained. As for Adam and his band, the performance actually made me like the single a bit more.

Music superstars Christina Aguilera, Adam Levine, Ceelo Green and Blake Shelton, judges of 'The Voice', share the February 16th cover of Rolling Stone.

Ahead of tonight's post-Super Bowl premiere, the judges have unveiled a new commercial entitled 'Vocal Combat', which is slated to air during the big event.

Watch the complete minute-long advertisement and read our thoughts beneath:

Last year, NBC captured a surprise hit with the reality competition 'The Voice' and for the show's sophomore season, the network is pulling out all the stops.

Aside from scoring the covet post-Superbowl, the show has added Christina Milian as the new Social Media Correspondent and Kelly Clarkson, Miranda Lambert, Robin Thicke, Neyo and more as Celebrity Advisers to the finalists.

While this stellar line-up of guests certainly raises the bar, for the music-based competition to truly contend with a juggler like 'American Idol', then the talent level of the hopefuls also has to increase. Watch the season two trailer below:

Javier Colon was crowned the winner of the first season of 'The Voice' in June and now, the budding star releases his first single "As Long As We Got Love".

The song, which features Natasha Bedingfield, is from his first album since his victory (and his third overall) 'Come Through For You', due on November 21st.