The "Poker Face" hitmaker joined the band onstage in a very Gaga-like outfit, to play piano and provide vocals.
LISTEN: This week's top alternative songs, according to the weekly Billboard chart.
The U2 frontman is partnering with a charity to help provide better eye care to the poor.
The rocker pays tribute to Foo Fighters frontman Dave Grohl and performs a beautiful cover of "Times Like These."
Maggie Poukkula, 19, found the 1987 photos in one of her father's books and she has thrilled fans of the band by sharing them via Twitter.
The "Thinking Out Loud" hitmaker helped a friend pop the question and all he got in return was a little KFC.
After years of tabloid gossip, country music's top couple Blake Shelton and Miranda Lambert announced their divorce after four years of marriage.
Phil Rudd, the drummer of Australian rock band AC/DC, has been arrested in New Zealand where he lives just 10 days after being sentenced to home detention, media reported on Sunday.
The veteran rocker took to the stage in Michigan and ended his set with an extra long, two-song encore.
They aren't your father's vinyl records ... well, actually, they might be.
The Culture Club star and the actor/rocker formed an unlikely duo when they teamed up for a performance of "Hello, I Love You" with The Doors guitarist Robby Krieger.
Best. Birthday. Ever.
This week marks the 30th anniversary of the day-long global concert that was broadcast around the world to raise money for humanitarian efforts in Africa.
The Foo Fighters frontman insists the band has improved its performances since his infamous stage slip last month.
The Nirvana classic like you've never heard it before.
Magazine photographer Bob Gomel captured some of the earliest days of Beatlemania, and many of his photos were never shared with the public, until now.
The "Thinking Out Loud" hitmaker is convinced the public thinks he smells like "sweat, shame and stale cigarettes."
The country star will be recognized for his exploration of the genre and for redrawing the boundaries to cross into jazz, blues, and rock.
The Rolling Stones guitarist announced the release of "Crosseyed Heart," his third solo album.
The soul singers joined forces for a very special duet.