Lady Gaga

The relationship was already strained, but this may have been the breaking point.

Bradley Cooper performed at the Oscars for the first time alongside Lady Gaga and fans loved it.

Listen to Lady Gaga and Bradley Cooper sing 19 new songs from the ‘A Star Is Born’ soundtrack.

She isn't actually, but this will make you laugh.

Bradley Cooper’s directorial debut may be a remake of a classic love story, but the Lady Gaga-led musical melodrama is just too good to resist.

Ready yourselves, Little Monsters: Gaga might be headed back to TV.

Bradley Cooper says that Lady Gaga insisted she'd only join 'A Star Is Born' if he became a real musician.

From Britney Spears to Madonna, check out seven high fashion campaigns starring pop stars.

'Revamp,' released on April 6, will also feature Pink, Sam Smith, Alessia Cara and more.

See some of your faves tackle Elton John classics at this star-studded TV special.