Woah! We didn't see this one coming. Avril Lavigne has shocked just about everyone with her latest news. The 27-year-old pop star is engaged to marry Chad Kroeger - yes, that's the same 37-year-old Chad Kroeger who fronts American rockers Nickelback.

The couple first hooked up after writing a song together in February for Lavigne's forthcoming fifth album, though it appears the spark was there almost immediately. A representative for Avril confirmed the news to People magazine, with a pal of the singer saying, "A romantic relationship blossomed as they spent time writing together". Kroeger popped the question on August 8, 2012, presenting his future wife with a 14-carat diamond sparkler. A family source said, "He makes her so happy.Both of their families could not be more excited". No word on dates yet, though we're guessing it may be pretty soon, judging by the time it took for Chad to propose.
It will be Kroeger's first marriage, though the second for Lavigne, who split from Sum 41 frontman Deryck Whibley in 2009. She also dated 'The Hills' star Brody Jenner for around two years, even getting tattoos to pledge their love to one another. The relationship came to an end not long before Lavigne and Kroeger started working together.