(CNN)"Agatha All Along," the catchy tune from episode seven of "WandaVision," is now on Spotify.

(If you haven't seen the episode, here's your spoiler warning.)

The song premiered last Friday and immediately went viral. It played during the series when Agnes, played by the Kathryn Hahn, was revealed to be Agatha Harkness. Hahn sings vocals on the track.