Good Genes or Good Docs

"Grease" star Stockard Channing has a lot to sing and dance about.

Here's the 34-year-old as Rizzo back in 1978 (left) -- and 33 years later, the 67-year-old at an event in NYC on Thursday (right).

Ageless is the word.

Spanish hunk Antonio Banderas will never need a mask of Zorro.

Here's the 32-year-old back in 1992 (left) -- and 19 years later, the 51-year-old "The Skin I Live In" star at an event in NYC on Thursday (right).

He's no desperado.

Rene Russo's looks are a lethal weapon.

Here's the 24-year-old former model back in 1978 (left) -- and 33 years later, the 57-year-old ginger babe at some event in Hollywood this week (right).

If only there was an outbreak of her beauty.

Kristian Alfonso has been playing Hope on "Days of Our Lives" for nearly 30 years ... but you would never know it.

Here's the 19-year-old back in 1984 (left) -- and 27-years-later, the 46-year-old at an event in Burbank this week (right).

Very dramatic.

Madeleine Stowe may be the last of the Mohicans as far as aging gracefully goes.

Here's the 28-year-old back in 1987 (left) -- and 24 years later, the 52-year-old at an event in L.A. this weekend (right).

Here's the TV lifeguard back in his '90s heyday (left) -- and the 58-year-old on the set of "Piranha 3DD" in North Carolina on Friday (right).

Someone's been laying off the cheeseburgers.

Here's the tantastic 28-year-old illusionist back in 1985 (left) -- and 26 years later, the 54-year-old version at an event in L.A. last week (right).

Voila.

Here's the 40-year-old one year before marrying Camille Grammer (left) -- and 15 years later, the 55-year-old divorcing version in NYC this week (right).

Not that much has changed.

Here's the 25-year-old former "Falcon Crest" star back in 1983 (left) -- and 27 years later, the 52-year-old more orange version at an event in L.A. last month (right).

Here's the 33-year-old ginger beauty back in 1985 (left) -- and 25 years later, the 58-year-old at an event in L.A. this week (right).

The "Taxi" star is not fare.

Here's the 29-year-old back in 1986 (left) -- and 24 years later, the 53-year-old version at an event in L.A. this week (right).

Big money.

Here's the 21-year-old Oscar nominee back in 1991(left) -- and 19 years later, the 40-year-old version at an event in NYC last week (right).

Reality doesn't bite.

Here's the 52-year-old "Dynasty" star back in 1985 (left) -- and 25 years later, the 77-year-old version at an event in London this year (right).

Getting old is not a bitch.

Here is the the 42 year-old version in a film editing bay in 1986 (left) and the 65 year-old version at red carpet event earlier this summer (right).

For Michael -- looking good is a "Basic Instinct."

Here's the 28-year-old back in 1992 when he played a high school student on "Beverly Hills, 90210"(left) -- and 18 years later, the 46-year-old at an event in Hollywood on Thursday (right).

He definitely graduated with honors.

Here's the 25-year-old back in 1986 (left) -- and the 49-year-old version at an event in L.A. earlier this month (right).

Cheers.