Good Genes or Good Docs

Mayim Bialik's looks are bangin'!

Here's a 13-year-old version of the "Blossom" leading lady back in 1989 (left) and 27 years later the 40-year-old mother of two ... and 'Big Bang Theory' babe ... at a party in Los Angeles earlier this month (right).

Bazinga!

The question is ...

Peyton Manning’s good looks aren’t retiring any time soon!

Here’s a 22-year-old version of the newly drafted Colt at training camp back in 1998 (left) and 18 years later ... the recently retired -- and Super Bowl winning -- quarterback at a Comedy Central event last month (right).

“Omaha!”

The question is ...

Beyonce’s good looks are definitely in formation!

Here’s a 20-year-old baby faced Bey at the Golden Globes in 2001 (left) and 15 years later ... the flawless singer -- who turns 35 this weekend -- at the MTV VMAs last week (right).

All hail Queen Bey.

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Kobe Bryant’s good looks are clearly not retiring!

Here’s a 19-year-old baby Black Mamba on the court back in 1997 (left) and 19 years later ... the recently retired Lakers legend -- who turned 38 earlier this week -- at an awards show last month (right).

“Mamba out.”

The question is ...

Robert De Niro is the godfather of good looks!

Here’s a 27-year-old version of the young A-list actor at a dinner in New York City (left) and 46 years later ... the Oscar-winning goodfella -- who celebrated his 73rd birthday earlier this week -- at a festival in Bosnia (right).

'Untouchable.'

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Tony Bennett is living the good life!

Here’s a 29-year-old version of the New York crooner at a photo shoot back in 1955 (left) and 61 years later ... the timeless singer -- who celebrated his 90th birthday earlier this month -- receiving The Entertainment Icon Award at an event in June (right).

The best is yet to come.

The question is...

Greg Louganis’ good looks are making a splash!

Here’s a 24-year-old version of the Olympic diver posing after his gold medal wins during the 1984 Summer Olympics in Los Angeles, California (left) and 32 years later ... the Team USA legend in New York City last month (right).

Tens across the board.

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Hilary Swank looks like a million dollars, baby!

Here’s a 25-year-old version of the leading lady sportin’ a pixie cut at a movie premiere back in 1999 (left) and 17 years later ... the long-locked Oscar-winning actress -- who turns 42-years-old Saturday -- at the French Open last month (right).

What a knockout!

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Jennifer Lopez's looks don't cost a thing.

Here’s a 26-year-old version of the Bronx triple threat at the premiere of her movie “My Family” in 1995 (left) and 21 years later ... the hot mama of two -- who turned 47 years old Sunday -- lettin’ her hair down at an L.A. party earlier this month (right).

Don't be fooled by the looks that she's got.

The question is ...

Kerry Washington’s good looks are scandalous!

Here’s a 25 year-old-version of the A-list actress at the premiere of her film “Bad Company” in New York City (left) and 14 years later ... the 39-year-old “Scandal” leading lady -- and expecting mom -- at a fundraiser in Burbank last month (right).

“It's been handled.”

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Sofia Vergara es muy caliente!

Here’s a 28-year-old version of the Colombian smoke show at a movie premiere back in 2000 (left) and 16 years later ... the "Modern Family" MILF -- who turned 44 years old today -- at a Los Angeles event earlier this year (right).

Spicy!

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We pledge allegiance to Tom Petty’s good looks.

Here’s a 27-year-old version of the "American Girl" singer with his free falling flowing locks in New York City (left) and 38 years later ... the born and bred American rocker on stage last month (right).

"Oh yeah, all right!"

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Courteney Cox is one sexy cougar!

Here’s a 28-year-old version of the “Dancing In The Dark” music video girl in Hollywood back in 1992 (left) and 24 years later ... the “Friends” favorite -- who recently celebrated her 52nd birthday -- at an awards ceremony in England last month (right).

Meow, that's how to age!

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Growing older is anything but a pain for Alan Thicke!

Here’s a 38-year-old version of the "Growing Pains" television dad at an awards ceremony in Los Angeles back in 1985 (left) and 31 years later ... the 69-year-old father of three at a golf tournament last month (right).

"The best is ready to begin."

The question is...

Kanye West has got his good looks on lockdown.

Here’s a 26-year-old version of the Chicago bred rapper at a festival in 2004 (left) and 13 years later ... the freestyle phenomenon and dad of two -- who celebrated his 39th birthday earlier this week -- backstage at the Summer Jam Concert last weekend (right).

Welcome to the good life!

The question is...

Heidi Klum's look is always runway ready!

Here’s a 25-year-old version of the Victoria's Secret Angel at a party in New York City back in 1998 (left) and 18 years later ... the angelic "America's Got Talent" host – who celebrated her 43rd birthday this week – at an awards show last month (right).

“Auf Wiedersehen.”

The question is ...