After almost six hours of FireAid, Lady Gaga ended the historic Los Angeles event by debuting a new song co-written with her fiance Michael Polansky, an upbeat number that she said was “just for tonight.

As the final artist to take the stage at Thursday night’s (Jan. 30) FireAid benefit concert, Lady Gaga left her mark by debuting a brand-new song written with her fiancé, Michael Polansky, for the victims of the Los Angeles wildfires.