Stunned Bradley Cooper is devastated after learning publicly — not privately — that Lady Gaga filmed their 2018 movie, A Star Is Born, while medicated on lithium and battling an ultimately resolved mental health crisis,

In March, the musician was sued for $100 million by the brand Lost International, which claims her Mayhem designs rip off one of its logos

Lady Gaga defeated a surf company’s bid to prohibit her from selling clothing bearing the word “Mayhem” while its lawsuit accusing her of trademark infringement moves forward.

In March, not long after Lady Gaga released her Grammy-nominated album Mayhem, a company called Lost Surfboards sued to stop her from selling merch with that word on it. A judge has now ruled that Gaga can continue providing Mayhem merch to Little Monsters.

Madame Tussauds Las Vegas has debuted a new Lady Gaga wax figure at The Venetian, inspired by her Jazz & Piano residency.

Johnson Wen, who infamously grabbed Ariana Grande during a "Wicked" premiere event, was reportedly barred from attending Lady Gaga's Mayhem Ball.

Us Weekly chooses the best albums of the year, with releases from artists including Justin Bieber, Lady Gaga and more

The 39-year-old was spotted leaving Sydney Airport on her private jet on Sunday, with her entrepreneur fiance Michael Polansky in tow.