Avril courting an old "Boyfriend"

Avril Lavigne has gotten herself into a mess, with two '70s songwriters claiming that she stole their song for her hit single "Girlfriend."

In a lawsuit filed in US District Court in Northern California, songwriters Tommy Dunbar and James Gangwer allege that "Girlfriend" rips off their 1979 song, "I Wanna Be Your Boyfriend," originally performed by The Rubinoos, whose previous claim to fame was penning the theme to "Revenge of the Nerds." Veteran music critic Stephen Thomas Erlewine wrote on Billboard.com that "Girlfriend" was "a total lift" from "Boyfriend."

You make the CALL:

Avril Lavigne's "Girlfriend"

The Rubinoos' "I Wanna Be Your Boyfriend"