NICKELBACK ATTACK Lavigne knocks Zuck over mean crack about band

Despite Avril Lavigne's 2015 split from Chad Kroeger, she still has his back. Lavigne came to the defense of Kroeger and his band Nickelback on Thursday after Facebook co-founder Mark Zuckerberg made a joke at the band's expense. The diss came in a YouTube video shared on Tuesday, in which Zuckerberg promotes his home artificial intelligence assistant Jarvis (voiced by Morgan Freeman). While demonstrating how the A.I. system can help with everyday tasks around the house, Zuckerberg asks Jarvis to play "some good Nickelback songs." I'm afraid I can't do that," Jarvis answers. "There are no good Nickelback songs." That was actually a test," Zuckerberg responds.