Aril Lavigne and Sum 41's Deryck Whibley are officially off the market. The two singers got married in Montecito, CA on Saturday, and reports say that it was a surprisingly traditional affair. According to People magazine, Lavigne was escorted down the aisle by her father. She wore a Vera Wang gown and carried a bouquet of white roses during the small, outdoor ceremony. Sum 41 drummer Steve Jocz was Whibley's best man. The couple's first dance was to the Goo Goo Dolls' "Iris."