Madonna, 50Madonna turned 50 on August 16, 2008. At half a century old, she set out on another stunning world tour. (Photo by Dave Hogan/Getty Images)
Kim BasingerKim's amazing skin (and body) makes it hard to believe the former beauty queen is 54. (Photo by Sean Gallup/Getty Images)
Dennis QuaidThe father of Hunky Quaid is 54 and recently fathered twins. (Photo by Andrew H. Walker/Getty Images)
Kim CattrallThe 'Sex and the City' star is impeccable at 51. (Photo by Stephen Lovekin/Getty Images)
Pierce BrosnanThe former 007 is 55 and just as dashing now as he was in his Bond heyday. (Photo by /Getty Images)
Jane SeymourBritish actress and one-time Bond girl Jane Seymour, who's real name is Joyce Penelope Wilhelmina Frankenberg, is 57. (Photo by MJ Kim/Getty Images)
Harrison FordThe ruggedly handsome 65-year-old recently reprised his role as action hero Indiana Jones in the blockbuster 'Indiana Jones and the Kingdom of the Crystal Skull' (Photo by Junko Kimura/Getty Images)
Sharon StonePerhaps it's her basic instincts that are keeping the 50-year-old actress in such great shape. (Photo by Toby Canham/Getty Images)
Tom SelleckThe 'Magnum P.I.' star and his magnificent mustache are 63. (Photo by Neilson Barnard/Getty Images)
Christie Brinkle...If it's organic food that's keeping Christie looking so delicious at 54, we'll have what she's having! (Photo by Will Ragozzino/Getty Images)
Tina TurnerAt 68, Tina and her famous legs are totally fierce! (Getty)
Ellen BarkinThe slinky star with the husky voice was rumored to be a paramour of perennial bachelor George Clooney's. And at 54, she may be the only woman he's ever dated who's even close to his own age (which is 47). (Photo by Evan Agostini/Getty Images for CFDA)
Gabriel ByrneEllen Barkin's ex-husband doesn't look so bad himself at 58.(Photo by Carlo Allegri/Getty Images)
Kevin CostnerThe 53-year-old actor doesn't look all that much older than he did back in his 'Bull Durham' days. (Photo by Bryan Bedder/Getty Images)
Jaclyn SmithThis 'Charlie's Angel' is still heavenly at 60. (Photo by Michael Buckner/Getty Images)
Denzel Washingto...The Academy Award-winning actor is 53. (Photo by Bryan Bedder/Getty Images)
Susan SarandonSarandon, pictured here with daughter Eva Amurri, is married to a younger man. Does that explain why she looks so lovely at 61? (Getty Images)
Jeff Bridges'The Big Lebowski', pictured here with comic book master Stan Lee, is the big 5-8. (Photo by Kevin Winter/Getty Images)
Annette BeningMarrying the biggest bachelor in Hollywood and having four children has had a youthful effect on actress Annette Bening, 50. (Photo by Frazer Harrison/Getty Images for AFI)
Mel GibsonMel looks a little worse for the wear at 52, but the hard-living lines seem to work for him. (Photo by Michael Buckner/Getty Images)
Goldie HawnMother of actress Kate Hudson, preternaturally youthful Goldie still has her blonde locks and her high-wattage smile at 62. (Photo by Carlos Alvarez/Getty Images)
Sean ConneryAnother Bond - the ultimate Bond? - made our the list. At 77, Connery is still a smokin' hot Scotsman! (Photo by Stephen Shugerman/Getty Images for AFI)
Raquel WelchShe's more famous for her good looks than her acting roles - and why not? She's 67 and she's still got 'em. (Photo by Frazer Harrison/Getty Images)
Blythe DannerGwyneth's mother and Apple's grandmother is spectacular at 65. (Photo by Stephen Lovekin/Getty Images)
Bruce WillisThe 53-year-old 'Die Hard' actor is a shining example of how to deal with baldness in the best way possible - without plugs or a toupee, Willis is still a handsome guy. (Photo by Bryan Bedder/Getty Images)
Isabella Rossell...The 56-year-old 'Blue Velvet' actress is aging gracefully - and gorgeously. (Photo by Scott Wintrow/Getty Images)
Robert RedfordAt 71, Redford still has those shaggy good looks that made him a heart throb in films like 'Butch Cassidy and the Sundance Kid' and 'The Way We Were'. (Photo by Bryan Bedder/Getty Images)
Meryl StreepThe Academy Award-winning actress is 59 and still having fun. (Photo by Andrew H. Walker/Getty Images)
Ed HarrisHe was named one of People's 50 Most Beautiful People in 2001, and 7 years later, the 57-year-old actor is just as handsome. (Photo by Bryan Bedder/Getty Images)