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Is Avril Still the Best Damn Thing?

The Rubinoos filed a lawsuit against Avril Lavigne, claiming her hit "Girlfriend" blatantly ripped off their 1979 song "I Wanna Be Your Boyfriend."

"You don't have to be a rocket scientist to know the songs are the same," said Jon Rubin, Rubinoos lead singer who is not part of the lawsuit.

This isn't the first such accusation Lavigne has faced. Fellow Canadian singer and labelmate Chantal Kreviazuk told Performing Songwriter magazine in June 2007 that Lavigne stole one of her song titles.

"Avril will also cross the ethical line, and no one says anything," Kreviazuk said in the interview.

Did she cross the line with "Girlfriend"? You decide.