Of course, this isn’t the first time Gaga and Mars have collaborated. Their surprise duet “Die With a Smile” continues to be one of the biggest radio and streaming hits out today since it’s initial release last year.

Lady Gaga and Bruno Mars threw it back to the '60s for their performance at the 2025 Grammys, singing The Mamas and the Papas' iconic hit "California Dreamin" midway through the ceremony at Crypto.com Arena Sunday (Feb.

Lady Gaga and Bruno Mars paid homage to Los Angeles with a performance of “California Dreamin’” at the 2025 Grammys. After a harrowing video detailed the effects of the wildfires on the L.A. community, the “ Die With a Smile ” singers performed a stripped down rendition of The Mamas & the Papas’ 1965 track.