Bradley Cooper worried about going bald!

The former Sexiest Man Alive has apparently told his stylist to keep a lid on rumors about his hair fall, reported Showbizspy. "He brought in a special stylist while he films 'The Hangover Part III' and is paying boucoup bucks for her to sign a confidentiality clause.

Brad is paranoid about going bald. He thinks it could kill his leading-man status. "He's been getting a cutting-edge hair-loss treatment and taking a battery of natural supplements and he's only washing his hair every three days, with expensive organic shampoos," a source said.

Bradley Cooper. Pic/Santa Banta