Avril Lavigne and Nickelback frontman Chad Kroeger aren’t just making music together. They’re getting hitched. A spokeswoman for Lavigne confirmed a Tuesday report from People magazine that the Canadian couple became engaged earlier this month after dating for six months. The magazine says Lavigne was introduced to Kroeger in February when they met to co-write a song for Lavigne’s upcoming album. “A romantic relationship blossomed as they spent time writing together,” said a friend of Lavigne. It will be the first marriage for 37-year-old rocker Kroeger and the second for 27-year-old pop singer Lavigne. She filed for divorce in 2009 from Sum 41 frontman Deryck Whibley after three years of marriage. Kroeger popped the question on August 8, presenting Lavigne with a 14-carat diamond ring. “He makes her so happy,” a family source told People. “Both of their families could not be more excited.” Lavigne surged to fame with her 2002 album “Let’s Go.” Kroeger has served as lead vocalist and guitarist for Nickelback since the band formed in 1995.