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Avril Lavigne got engaged to Nickelback frontman Chad Kroeger after six months of dating. Few people even knew that the Canadian rockers were together.
Kroeger reportedly proposed with a 14-carat diamond ring on August 8. Lavigne confirmed the news on August 21, by retweeting a Twitter message posted on Nickelback's account that said, 'Congratulations Avril and Chad!'
This will be Kroeger's first marriage. Lavigne was previously involved with Sum 41 frontman Deryck Whibley. The pair married in July 2006 in California, and have no children together. Lavigne filed for divorce in October 2009, citing irreconcilable differences.
(Pictured: Avril Lavigne cheers as she walks down the runway of her own New York Fashion Week show, where she debuted her Abbey Dawn Spring/Summer 2012 collection, on Monday, Sept. 12, 2011.)