Aubrey O'Day's Bright Future

Here's former Pussycat Dolls Danity Kane member/current Playboy cover girl Aubrey O'Day (left) at NY Fashion Week on Tuesday -- and former Playmate/Lorenzo Lamas' ex-wife Shauna Sand at some event a while back (right).

Pass the Lucite stripper heels, please.

We're just sayin'.

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Jared Leto: Smells Like Teen Spirit

Here's actor/30 Seconds to Mars member Jared Leto at NY Fashion Week on Sunday (left) -- and late Nirvana lead singer Kurt Cobain back in 1993 (right).

One of them made amazing music.

We're just sayin'.

Taboo: Oh No She Didn't

Here's Jaime Luis Gomez, aka Taboo, of the Black Eyed Peas (left) at an event in L.A. on Thursday -- and not guilty by reason of insanity multiple child killer Andrea Yates (right).

We're just sayin'.

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If Madonna Weren't Famous She'd Look Like ...

Here's the 50-year-old rejuvenated queen of reinvention Madonna Louise Veronica Ciccone Penn Ritchie (left) -- and Italian Vogue editrix Franca Sozzani (right).

Madonna has experienced many miracles.

We're just sayin'.

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Hello Doggy!

Here's a Shih Tzu at the 133rd Annual Westminster Kennel Club Dog Show in NYC on Tuesday (left) -- and 63-year-old country legend Dolly Parton in DC (right).

Both have been styled, groomed and adorned in order to appear cuter.

We're just sayin'.

Katy Perry: I Kissed a Wrestler

Here's Christian rocker turned sapphic tease singer Katy Perry at the Belvedere IX vodka party in Beverly Hills last night (left) -- and rehabbed former wrestler Joanie "Chyna Doll" Laurer (right).

Both are biologically female.

We're just sayin'.

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Courtney Love's Celebrity Skin

Here's partially reassembled rock star Courtney Love standing upright at an event in London on Monday (left) -- and her rival, rejuvenated pop queen Madonna in NYC last year (right).

Both are attempting to smile.

We're just sayin'.

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Eugene Levy: Marxist

Here's "American Pie" star Eugene Levy at a premiere in L.A. on Thursday (left) -- and the late Julius Henry "Groucho" Marx (right) of the Marx Brothers.

One of them is famous for having a pair of novelty glasses made in their likeness.

We're just sayin'.

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Octuplet Mom Adopts Jolie Lips

Here's infamous multiple birth mom Nadya Suleman aka Octupussy on "Today" (left) -- and the one and only Angelina Jolie at an event in December (right).

Only one of them has a total of 14 kids ... so far.

We're just sayin'.

Madea Goes to 90210

Here's Tyler Perry as Madea Simmons in the upcoming movie poster for "Madea Goes to Jail" (left) -- and "90210" star Tori Spelling (right).

Only one of them is in drag. Hallelu-yer!

We're just sayin'.

'Slumdog' Wants Your Sex

Here's "Slumdog Millionaire" star Anil Kapoor (left) at the DGA Awards this past weekend -- and fallen pop star George Michael (right) a few years back.

One of them needs to phone a friend.

We're just sayin'!

Kathy Griffin and Beaker -- No Strings Attached

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Josh Hartnett Is Da Bomb

Here's Josh Hartnett jogging in TriBeCa on Thursday (left) -- and a sketch of the Unabomber, aka Ted Kaczynski, (right).

Allegedly, neither of them is Suri Cruise's biological father.

We're just sayin'.

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Blagojevich's Killer Hair

Here's Illinois Governor Milorad "Rod" Blagojevich in Chicago last month (left) -- and Lyle Menendez, one half of the infamous Menendez Brothers, back in 1992 (right).

One of them is currently serving a life sentence in state prison.

We're just sayin'!

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Lady Bird Jolie

Here's first lady of Hollywood Angelina Jolie (left) at a Berlin premiere on Monday -- and the late First Lady Claudia Alta "Lady Bird" Taylor Johnson back in 1967 (right).

One of them was protected by the Secret Service for 44 years.

We're just sayin'.

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Dude Looks Like a Lady, Cuz She Is

Here's 72-year-old thespian Dyan Cannon (left) at a Laker game this weekend -- and 60-year-old Aerosmith singer Steven Tyler (right).

Neither of them is Carly Simon.

We're just sayin'.