Avril Lavigne vacationed in Mexico with a group of girlfriends on Friday. She may be Canadian, but she represented England when she hit the beach in a Union Jack bikini and white cutoff shorts. Avril laughed with her pals as they ran around on the sand and dipped their feet in the water. The fun continued yesterday when the ladies spent an afternoon on a yacht. Avril went snorkeling in a bright green bikini and, after drying off, posed for pictures with her friends. She's just one of the many celebrities taking advantage of the warm weather with trips this Summer including Julia Roberts and Rihanna. There are even more stars in the running for our 2012 Bikini Bracket — play now for a chance to win $500 to Neiman Marcus.