"I'm so honored to have a small part in your giant musical legacy," Bruno Mars told Lady Gaga upon accepting the award for best pop duo/group performance

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

The speculation continued over Grammys weekend, with fan sites positing that Gaga and Mars would perform a cover of Michael Jackson’s “Earth Song” at the show. Host Trevor Noah confirmed at the top of the show that Gaga and Mars would be serenading the audience, but conveniently left out what they’d be singing.