By Daily Mail Reporter
In some minds, Avril Lavigne will for ever be a surly teenager swathed in baggy clothes.
But the Complicated singer, now 24, cut a rather different figure while taking a dip in Malibu.
She looked positively happy as she splashed in the surf, bursting out laughing as her bikini threatened to slip down.
Even so, Avril stayed true to her punky style by keeping her baseball cap and jewellery on when she was in the water.
She enjoyed the waves with a female friend, before playing ball games and doing cartwheels on the sand.
The singer tied the knot with Sum 41 frontman Deryck Whibley in July 2006 after a two-year romance.
But there were reports at the end of last year that they had grown apart when she embarked on her world tour.
The distance was said to have put pressure on the couple and he was thought to have been struggling to deal with being overshadowed by his wife.