Bradley Cooper

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

A source says the actor was emotionally absent during the filming of 'A Star Is Born.'

And no, Lady Gaga has nothing to do with it.

The 'Shallow' singer set the record straight once and for all.

Bradley Cooper's ex-wife has some thoughts about his chemistry with Lady Gaga.

'I don’t see how you do no fall in love with your co-star.'

Mel B says Lady Gaga "broke" girl code during her Oscar performance.

We're not the only ones still swooning over that Oscars performance.

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

See all the celebrity fashion looks on the 2019 Oscars red carpet.