Singer Mariah Carey is 42. (Photo by John Shearer/Getty Images)
Movie director Quentin Tarantino is 49. (Photo credit should read GABRIEL BOUYS/AFP/Getty Images)
Hip-hop singer Fergie (Black Eyed Peas) is 37. (Photo by Joe Kohen/Getty Images for Samsung)
Rock musician Tony Banks (Genesis) is 62. (Photo by Evan Agostini/Getty Images)
Actor Nathan Fillion is 40. (Photo by Larry Busacca/Getty Images)
