It's official!

Avril Lavigne and Chad Kroeger tied the knot in the South of France yesterday.

E! News has learned that the pair exchanged their "I dos" at the 14th century castle named Château de la Napoule in the town of Mandelieu.

The two singers were surrounded by 50 of their closest friends and family for the destination wedding. Lavigne and Kroeger said they vows just outside of the castle, in a courtyard that had stunning views of the coastline.

Once the ceremony was over, guests were treated to a buffet of locally caught lobster, sea bass and beef which was washed down with "endless glasses" of Laurent-Perrier champagne, a source tells E! News.