After songwriters for the '70s pop group the Rubinoos sued Avril Lavigne for plagiarizing their song "I Wanna Be Your Boyfriend" with her hit "Girlfriend," Lavigne fired back on her official Web site. "I had never heard this song in my life and their claim is based on 5 words," Lavigne blogged in July. "All songs share similar lyrics and emotions. As humans we speak one language."