Celebrity mug shots, sex tapes, embarrassing ads from the lean years -- they all turn up eventually. Many of today's stars cut their teeth shilling for Madison Avenue, and they surely never expected to see their efforts resurface outside of the occasional "Before They Were Famous" TV special. But thanks to the wonders of the Internet, their tampon ads and "tubular" hairstyles are preserved forever.

Pop a Zima, and take a look at our gallery of some of the more embarrassing celebrity ads from yesteryear. They'll make you glad you aren't famous.

Most Embarrassing Celeb Ads

    Keanu Reeves: Corn Flakes-- First off, what evil corporate event is Keanu catering where everyone is forced to eat disgustingly bland Corn Flakes? We're not sure what makes less sense: Keanu's role as a frustrated Broadway dancer turned caterer, or his look of sheer joy after furtively taking a bite of the most tasteless cereal known to man.

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    Evangeline Lilly: Livelinks Chat line -- In case you require proof that the "sexy singles" on those chat lines that advertise on late night TV are actors, here's "Lost" beauty Evangeline Lilly pretending that she needs to pay someone in order to get a date. The possibility of talking to anyone as remotely attractive as Lilly on Livelinks is about as high as the "Lost" cast going a full day without a DUI.

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    Paul Rudd: Super Nintendo -- Rudd is actually providing a service here, exposing the seedy world of underground SNES fight clubs that corrupted our youth during the early '90s. While his trenchcoat and hairstyle has thankfully stayed in the era, it's a tribute to Rudd's snarky cool that he seems to be making fun of anyone who could get that excited over "F-Zero."

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    Hulk Hogan: Hitachi Bigflow -- The Hulkster singing the days of the week, a random shot of a baby... this abomination could've only come from Japan. The ad also offers no indication as to what the Bigflow actually does, other than conjure a tone deaf and shirtless Hulkster like some sort of demonic genie bottle.

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    John Travolta: Safeguard Soap -- Travolta's pre-"Grease" musical performance is actually a searing indictment of the now-banned shampoo additive hexaclorophene. Also, it features way better production values than "Battlefield Earth." That said, Vinnie Barbarino would've so kicked these guy's asses.

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    Matt LeBlanc: Cherry 7-Up -- LeBlanc perfected the five facial expressions that comprise Joey Tribbiani in a series of cheesy ads during the '80s. (Only Joey would attempt that Heinz ketchup bottle on a rooftop trick.) This spot for the decidedly unmanly Cherry 7-Up is perhaps LeBlanc's most embarrassing, saddling him with a pink shirt and the task of scoring some sickly sweet fruit soda for his bros in the car. Between the soft rock soundtrack and "meet cute" scenario, the whole thing seems more like an outtake from "Some Kind of Wonderful" than a spot for sugary fizzy water.

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    Naomi Watts: Tampax -- Growing up is one big hassle for Naomi Watts -- zits, annoying brothers, embarrassing tampon ads from your early days in Australia. Watts' cuteness softens her discussion of Tampax's "hygienic applicator," but this role is a long way from "21 Grams."

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    Bruce Willis: Seagram's wine coolers -- This ad contains two things that should have stayed in the late '80s: consumption of wine coolers and Bruce Willis singing. Nothing is manlier than hanging out on the porch with your boys, singing the blues into a wine cooler bottle.

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    LL Cool J: Ladies Love 900 Numbers -- Back when James Todd Smith was an MTV draw for the kids, 900 numbers were a sure-fire way to squeeze out a few extra dollars from fans. We remember being skeptical about this ad at the time, but the pencil snap got us running to the phone.

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    Jason Alexander: McDonald's McDLT -- Alexander will perhaps never live down his stint as a "Music Man"-esque huckster selling townspeople on the novelty of a "lettuce and tomato" hamburger. Everything in this ad -- from the seizure-inducing pastels to Alexander with hair -- screams Reagan era. Also, seen today, McDonalds cost-cutting attempts to make consumers do the burger-making work themselves is clearly a product of Reaganomics.

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