Good Genes or Good Docs

Phylicia Rashad's maternal beauty has never gone off the air.

Here's a 40-year-old version of everyone's favorite TV mom at a party in New York City back in 1988 (left) and 27 years later ... the highness of Huxtables -- who turns 67-years-old next month -- at a Los Angeles theater earlier this year (right).

Oscar Del La Hoya is still a knockout!

Here's a 22-year-old version of "The Golden Boy" after a boxing workout in New York City back in 1995 (left) and 20 years later ... the now 42-year-old Olympic Gold Medalist at a press conference in Los Angeles earlier this year (right).

When it comes to good looks ... Al Pacino is anything but a "Scarface."

Here's a 39-year-old version of the "Michael Corleone" stud at a celebrity benefit back in 1979 (left) and 36 years later ... the godfather of cool -- who is celebrating his 75th birthday this weekend -- at a NYC movie theater last month (right).

Jackie Chan's good looks are still kicking ass!

Here's a 27-year-old version of the martial arts expert and "Dragon Strike" actor hanging out in Paris back in 1981 (left) and 34 years later ... the "Rush Hour" vet -- who turned 61-years-old earlier this week -- at a speaking event in Beijing, China (right).

Robert Downey Jr.'s good looks have been resurrected!

Here's a 21-year-old version of the "Back To School" stud leaving a movie premiere in New York City back in 1986 (left) and 29 years later ... the "Iron Man" -- who turned the big 5-0 this week -- at an awards show earlier this year (right).

Fergie's beauty is "Boom Boom Pow!"

Here's a 28-year-old version of the The Black Eyed Peas singer turned solo artist in Los Angeles back in 2003 (left) and 12 years later ... the mother of one -- who turned the BIG 4-0 earlier this week -- relaxing at a fashion event sans eyebrow piercing earlier this year (right).

Kim Kardashian's backside is a growing sensation.

Here's a 26-year-old version of the budding sex-tape tush in a polyester little black dress back in 2006 (left) and 9 years later -- a 34-year-old version of the reality rump in a pair of industrial strength mom jeans arriving at an L.A. studio Monday (right).

Eva Longoria's beauty will go on for-eva!

Here's a 26-year-old version of the "Desperate Housewives" hottie at a Hollywood fashion show back in 2001 (left) and 14 years later ... the restaurateur -- who is celebrating the big 4-0 this weekend -- speaking at a panel in Los Angeles earlier this year (right).

Shaquille O'Neal's handsome good looks are magic!

Here's a 23-year-old version of the Orlando Magic center sitting courtside at a preseason game back in 1995 (left) and 20 years later ... the rapper/host/badass -- in Vegas where he celebrated his 43rd birthday earlier this week (right).

Dave Matthews' handsome looks keep marching on.

Here's a 30-year-old version of the singer-songwriter and DMB frontman at an awards show back in 1997 (left) and 17 years later ... the now 48-year-old college dorm staple at an L.A. event last year (right).

"So much to say, so much to say."

Jennifer Love Hewitt's looks have stuck since "Last Summer."

Here's an 18-year-old version of the "I Know What You Did Last Summer" star at an awards event in Hollywood back in 1997 (left) and nearly 18 years later ... the "Criminal Minds" actress -- who is celebrating her 36th birthday this weekend -- in Los Angeles last year (right).

Anna Wintour's beauty is always in style.

Here's a 42-year-old version of the fashion forward icon leaving an exclusive party with her signature blunt bob haircut back in 1991 (left) and 24 years later -- the now 65-year-old staple sitting front row at one of the many fashion shows at NYFW earlier this week (right).

Ashton Kutcher's chiseled good looks haven't changed since the "'70s!"

Here's a 21-year-old version of the "Dude, Where's My Car" actor at an awards show back in 1999 (left) and 16 years later ... the "Two and a Half Men" star -- who celebrated his 37th birthday this weekend -- at a movie premiere earlier this month (right).

Tom Hanks was spotted at a New York Rangers hockey game earlier this week with an old friend and co-star Wilson from the 2000 film "Cast Away" -- and even though Wilson was thought to be lost at sea ... it would appear that he's been using some unregulated means to keep his image pumped through the years.

Alicia Keys' beauty is on fire!

Here's a 20-year-old version of the "Fallin'" singer at a Grammys party in Los Angeles back in 2001 (left) and almost 14 years later ... the mother of two -- who is celebrating her 34th birthday today -- at a book release in New York City late last year (right).

Laura Dern's beauty is anything but "Jurassic."

Here's a 30-year-old version of the "Jurassic Park" matriarch at a benefit in Santa Monica back in 1997 (left) and 18 years later -- the now 47-year-old mother of two at a film festival in Palm Springs earlier this year (right).