The singer made her first performance in over a year.
The singer tells 'Good Morning America' about the sickness that left her totally bedridden.
Avril Lavigne fans, get ready to feel all the feels. The singer just debuted her new song "Fly" -- and it's awesome.
Avril's Lavigne's upcoming song "Fly" played a major role in the singer's personal life. And we'll get to hear it very, very soon.
Avril Lavigne opened up about her scary battle with Lyme Disease to PEOPLE magazine.
Avril Lavigne is back with a new music video for her single, 'Give You What You Like' and fans are, unsurprisingly, totally thrilled.
Avril Lavigne just dropped the trailer for her 'Give You What You Like' video -- and it's like nothing we've ever seen from the singer!
Avril Lavigne announced via Twitter that she had written a song for the Avril Lavigne Foundation, as a way to show her support for the upcoming Special Olympics.
It's Christmas Day 2014 and thanks to social media, celebrities haven't been shy about sharing their well wishes and photos from their special day.
Take a look at wishes, photos and memories from Britney Spears, Rihanna, Bella Thorne, Lucy Hale and more below.
Avril Lavigne has been somewhat silent about the undisclosed health issues that she revealed to fans in mid-December. But the 30-year-old Canadian pop star took to her Twitter account to set the record straight about a rumor that she is in rehab.