Remember Katie, aka "'Reeba Deeba," the bassist from School of Rock? She was one of Mr. Schneebly/Dewey/Jack Black's most promising students and the lone female member of the band (other than the back-up singers). Well, 13 years later, she's an actual rock star.

Katie played bass in the band.
Paramount Pictures

Former child actress Rebecca Brown, who played Katie, now plays bass (which she originally learned for the movie) and sings lead in a band:

playing the magic fire music ☠🔥🎶 #jennaroxy

A photo posted by Becca Brown. (@usuallybeccabrown) on

And she has a killer voice, proven by this cover of Lit's “My Own Worst Enemy”:

when I smoke juuuust enough I start doing really sexy covers of awful 90s pop punk songs #cover #lit #yourewelcome

A video posted by Becca Brown. (@usuallybeccabrown) on

She also writes her own music. Like this song "Sorry" which has a feminist message about the way women over-apologize.