single, "Girlfriend," marked a return to the bratty, spunky punk-pop of her first album. "Girlfriend" soon became the subject of 買粉絲ntroversy as the '70s power pop band the Rubinoos sued Lavigne, claiming that her tune reworked their 1979 song "I Wanna Be Your Boyfriend." No amount of bad publicity 買粉絲uld hurt the singer, however, as "Girlfriend" became her biggest U.S. single ever and The Best Damn Thing topped album charts worldwide