Britney Spears, Gisele Bündchen and Justin Bieber Disrobe for Mario Testino's 'Towel Series' – See Their Sexy Snaps!

Britney Spears; Cara Delevingne; Bruno Endler; Gisele Bündchen; Justin Bieber; and Alex Pettyfer;

Mario Testino/V Magazine

Picture a day at the spa with some of Hollywood's sexiest stars.

That's what you get with celebrity photographer Mario Testino's new "Towel Series," and only PEOPLE has your exclusive first look before V magazine's 100th issue hits newsstands March 8.

Britney Spears – who shows off even more skin in her revealing cover story – owns the spotlight in the star-studded spread, channeling Marilyn Monroe while striking a glamorous pose.

Then there's Gisele Bündchen and Cara Delevingne, whose towels are tastefully arranged to show hints of skin.