Grown-up Avril Lavigne

Avril Lavigne has ditched her adolescent punk style in favour of grown-up glamour.The young singer admits she feels more like a lady and was happy to pose in Gucci and Channel for next month's Harper's Bazaar magazine.The 20-year-old told the fashion glossy: "I'm starting to feel more feminine. I'm getting into hair and makeup and image."The magazine calls Avril's new look, "Twiggy for the 2000s."Meanwhile, Lavigne has signed up to make her acting debut in a screen adaptation of Eric Schlosser's bestselling expose 'FastFood Nation'.The Canadian pop star will share the screen with Patricia Arquette, Ethan Hawke, and Lindsay Lohan's ex, Wilmer Valderrama, among others.The movie, based on the book which exposed secrets of the fast food industry, will be released later this year.