Water under the bridge for Avril Lavigne and her ex-husband Deryck Whibley. Lavigne, 39, joined Sum 41’s Whibley, 44, on stage at the MGM Grand Garden Arena to perform a duet of his band’s “In Too ...

The When We Were Young festival isn’t for another four months, but Las Vegas became a pop-punk haven during Avril Lavigne’s concert at the MGM Grand Garden Arena on Saturday, June 1. The “Girlfriend” ...

Avril Lavigne and her ex-husband Deryck Whibley, the Sum 41 rocker she was married to for three years, have been on pretty friendly terms since their 2009 split. Whibley even produced many of the ...

Avril Lavigne has praised her ex-husband Deryck Whibley as a "legend" after the pair reunited for a performance. The 40-year-old singer and the Sum 41 frontman, 45, wed in 2006, but they split in 2009 ...

So, one of Avril Lavigne’s exes joined her on stage this past weekend. Was it Brody Jenner? Her ex-husband Chad Kroeger? Mod Sun? Nope, her first ex-husband Deryck Whibley joined her on stage! On June ...

Deryck Whibley has dropped Avril Lavigne's last name legally. Three years after the couple's divorce, the Sum 41 frontman has filed legal papers at LA County Court to make the change, according to TMZ ...

It's clear things are not too complicated between Avril Lavigne and her ex-husband, Sum 41 frontman Deryck Whibley. Instead, nearly 15 years after they called it quits, they seem to be quite friendly!

Avril Lavigne has ended her marriage to Chad Kroeger after two years of marriage, the star confirmed today. The Complicated hitmaker shared the sad news with a beautiful portrait of the couple, ...

Avril Lavigne's ex-husband went to a Halloween party dressed as her. Deryck Whibley dressed as the 'Sk8r Boi' singer - who he was married to between 2006 and 2009 - for a Halloween party this weekend, ...