Pop star Nick Lachey is baring all in a racy new deodorant commercial. The estranged husband of Jessica Simpson is following in the footsteps of Ben Affleck, who also shot a sexy advertisement for Lynx deodorant spray, which aired only in the UK. Parent company Unilever's Axe and Lynx brands are known for its ads, in which a mere whiff of the spray sends women writhing in the throes of passion. Lachey didn't have to do much to get in shape for the Axe shoot - he recently scored $500,000 (GBP278,000) to appear in celebrity trainer GUNNAR PETERSON's infomercial, after the fitness guru whipped him into shape.