Good Genes or Good Docs

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.

Here's the 23-year-old crooner back in 1991 (left) -- and 19 years later, the 42-year-old in NYC last month (right).

Classic.

Here's the 24-year-old in London back in 1964 (left) -- and 46 years later, the 70-year-old version at a concert in NYC on Wednesday (right).

Let it be.

Here's the 31-year-old back in 1986 (left) -- and 24 years later, the 55-year-old version at an event in Madrid on Monday (right).

Here's the 26-year-old back in 1979 (left) -- and 31 years later, the 57-year-old at an event in New Jersey on Tuesday (right).

Invincible.

Here's the 26-year-old Go-Go's lead singer back in 1985 (left) -- and 25 years later, the 51-year-old at an event in NYC on Wednesday (right).

As far as her secret, our lips are sealed.

Here's the 30-year-old back in 1984 (left) -- and 26 years later, the 56-year-old version at an event in NYC last week (right).

We see her true colors, and that's why we love her.

Here's the 27-year-old former MTV VJ back in 1994 (left) -- and 16 years later, the 43-year-old version (right) at an event in Miami on Thursday.

Here's the 22-year-old "Less Than Zero" star back in 1987 (left) -- and 23 years later, the 45-year-old version at an event in Beverly Hills last month (right).

Here's the disfigured razor-sharp character back when he starred in the original 1984 film "A Nightmare on Elm Street" (left) -- and 26 years later, the 2010 version in the new remake (right).

Here's the 33-year-old Brooklyn boy back in 1984 (left) -- and 26 years later, the 59-year-old version at an event in NYC (right).

Here's the 20-year-old Oscar winner back in 1984 (left) -- and 26 years later, the blonde 46-year-old version at an event in L.A. on Tuesday (right).

Here's the 33-year-old Oscar winner back in 1989 (left) -- and 21 years later, the 54-year-old version at an event in NYC this week (right).

Speechless.