In a surprising match, Canadian rock superstars Chad Kroeger and Avril Lavigne are getting married, according to People magazine.

Kroeger, the 37-year-old frontman of the love-em-or-hate-em band Nickelback, and pop-punk princess Lavigne, 27, got together in February to co-write a song for Lavigne’s next album.

"A romantic relationship blossomed as they spent time writing together," a Lavigne friend is quoted as telling People. Kroeger reportedly popped the question on Aug. 8, presenting his bride-to-be with a 14-carat diamond ring.

Take a look at photos spanning the careers of this famous pair.

Kroeger's band offered a toast to the couple with a banner reading "Congrats Chad and Avril" on the Nickelback website. For her part, Lavigne re-tweeted congratulations from fans on her official Twitter account.

This will be the second marriage for Lavigne, who separated from Deryck Whibley of Sum 41 in 2009. Kroeger has never wed, but is currently embroiled in divorce proceedings with his former common-law partner Marianna Goriuk. The couple lived together for about seven years in Kroeger's massive Abbotsford mansion, living a life of luxury that included trips in a private jet to their Mexican vacation home and helicopter flights to party in Vancouver.

Earlier this year, Lavigne was rumoured to be dating shock rocker Marilyn Manson, but the goth icon denied those reports.

Kroeger was born in Hanna, Alberta, while Avril Lavigne hails from Napanee, Ontario.

Take a look back at Kroeger's career in Nickelback with these photos.

Check out photos from Lavigne's 2011 Rogers Arena show here.