Avril Lavigne is set to marry Nickelback singer Chad Kroeger after the pair got engaged.

The musical duo have only been seeing each other for six months after meeting up to co-write a song together.

The BBC reports that a spokesperson for Lavigne confirmed the news of their engagement.

Lavigne, 27, was previously married to Sum 41 punk rocker Deryck Whibley but they divorced in 2009 after three years together.

37-year-old Kroeger, meanwhile, will be marrying for the first time.

'Sk8er Boi' star Lavigne took to Twitter soon after the news broke to thank fans and friends who had been tweeting her congratulations.