Lady Gaga premiered her new single and video, 'Abracadabra,' during a Grammys commercial break, on top of her live duo performance with Bruno Mars at the ceremony.

Lady Gaga debuted a new song and music video during Sunday’s Grammys− and she sent a message of solidarity to trans people.

In a stirring tribute to a city in crisis, Lady Gaga and Bruno Mars sang "California Dreamin'" at Sunday night's Grammys ceremony.