Avril Lavigne is being sued by the members of a 1970s rock band who claim her hit song “Girlfriend” rips off one of their tunes.

Songwriters Tommy Dunbar and James Gangwer alleged in a lawsuit filed in U.S. District Court that Lavigne and her co-writers lifted their 1979 song “I Wanna Be Your Boyfriend,” which was originally performed by new wave band The Rubinoos.