Forget Propecia. Celebs are embracing the cue-ball look. Longtime baldy Michael Stipe, supermodel Alek Wek, Moby, and Billy Corgan have been joined by a brave new band of shiny heads. There’s Mel Gibson, who recently shaved his pate; Cate Blanchett who goes hair-free in the upcoming film Heaven; Jared Leto, who got razored after completing Requiem for a Dream; and the young genetic projects on Dark Angel (not to mention cover guys Bruce Willis and Samuel L. Jackson). ”This trend started in Tokyo and London,” says Yoshio of NYC’s Oscar Blandi Salon. ”It’s kind of spiritual, and when you have a good sense of style and a shaved head it looks great.” Something Mr. Clean has long known.