Gaga, 27, revealed a preview of her upcoming single on Wednesday during a live rehearsal for the iTunes Music Festival.
The singer posted the video on her YouTube channel, and from the sound of it, she's taking a seemingly heavier tone.
The song begins with the Queen of Pop solemnly singing and playing the keyboard. That is, until she kicks it into high gear while screaming and banging on a drum set.
There's still no word on the song's title or release date, but it's possible she'll reveal those details leading up to her performance at the iTunes Music Festival on Sunday.