Avril Lavigne Engaged to Nickelback's Chad Kroeger

February 28: Now-engaged Canadian rockers Avril Lavigne and Chad Kroeger hang out in the studio.

Two members of Canadian rock royalty are getting hitched! No, there's no fireworks between Alanis Morissette and Geddy Lee... yet. It's an engagement between Avril Lavigne and Nickelback singer Chad Kroeger, who up until today, few even knew were dating.

The "Sk8er Boi" star's rep confirmed the news to PEOPLE. According to the report, the relationship "blossomed" while they were writing songs for Lavigne's upcoming album. In late February, Lavigne tweeted a playful photo of her and her future beau, with the caption "Bro'ing out with Chad Kroeger in the studio."

Whatever their collaboration ends up producing (aside from a wedding date) the two rockers have a proven track record in the studio. Between them, the couple has sold 34.3 million albums in the U.S., according to Nielsen SoundScan, and notched 11 top 10 singles on the Billboard Hot 100 chart.

Kroeger, 37, proposed to the 27-year-old Lavigne on Aug. 8 with a 14-carat diamond engagement ring.

This will be Lavigne's second time down the aisle, having finalized her divorce with Sum 41's Deryck Whibley in 2010. Since then she has also dated socialite Brody Jenner. This will be Kroeger's first marriage.

Watch Avril and Chad Talk About Their Biggest Hits:

Avril Lavigne, "Boyfriend"
Nickelback, "How You Remind Me"