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They kept their romance under wraps for months, but Avril Lavigne and Chad Kroeger decided to open up about their relationship -- and their engagement! -- on the Sept. 10 cover of Hello! Canada.

Lavigne, 27, proudly flashes her 14-carat diamond ring on the cover of the special double issue, with Nickelback frontman Kroeger, 37, wrapping his arms around the "Complicated" singer.

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The couple met while working on Lavigne's forthcoming fifth album in February, and Kroeger popped the question August 8. "I knew I was falling for her," Kroeger told Hello! Canada of their intense studio sessions. "It was incredibly powerful and something I'll never forget."

According to once-wed Lavigne, Kroeger "makes me laugh every day. He takes care of me in every way and is extremely attentive."

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Kroeger adds that because of Lavigne, "I feel like the luckiest person alive because I get to be with my best friend every day!"

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Prior to her relationship with Kroeger, Lavigne dated "The Hills" reality star Brody Jenner, 29, on and off from 2010-2012. She was married to Sum 41 singer and guitarist Deryck Whibley, 32, from 2006-2010. This will be the first marriage for Kroeger.


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