Trishelle is the bad girl from Real World: Las Vegas: the season that was so insane it warranted a reunion season.

Much like the Mob, it's hard to know who to trust on Mob Wives. One thing you can trust is that Drita is a hottie packing a punch.

She's sweet as sugar, but get her around Spencer and prepare for crazy. Long live The Hills-era Speidi!

Jen is known for breaking hearts and taking names on Laguna Beach and The Hills.

On Real World/Road Rules are you really bad if you have a thirst for success? (Pictured here with Melissa Howard)

Sheree made few friends on The Real Housewives of Miami. "Who gon check me, boo?" Nobody. Nobody, Sheree.

You might know her as Ms. New York from Flavor of Love. This female phenom made such an impression that she scored her own spinoff.

This bombshell was rewarded with the Tyra fit heard round the world on America's Next Top Model. We were rooting for you, we were all rooting for you, Tiffany!

Donald Trump fired her on The Apprentice, but we just think she's on fi-yah.

She's a boss, so she does what she wants. Try to test her and you can see your way out on Millionaire Matchmaker.

O'Day was the breakout star on Diddy's reality show Making the Band 3. She was a member of Danity Kane, but was dismissed because of her "oversexed" bad girl image.

On The Real World, Chung was sweet with an edge. She launched a successful acting career after gaining fame from several shows on MTV.

Lewis is a hottie from Survivor, but she didn't earn her bad girl status until a sex tape of her and her husband leaked.

As the host and a judge on Top Chef, Lakshmi is not only hot, but she's not afraid to express her opinion, even if it's too truthful for the contestants.

Patridge became famous as The Hills' bad girl. She went on to have her own reality show, Audrina.

Lest we forget, Kardashian shot to fame after her sex tape leaked. Now she's a top celebrity with her own reality show.

Starting out as a Playboy model, Wilkinson soon became a reality show star with the help of Hugh Hefner.

A contestant on Paris Hilton's My New BFF, Sato got booted from the show for kissing the groom at a bachelor party.

Kozer made Joe Millionaire fun and unpredicatble, especially after her fetish bondage videos were found.

Before Kim Kardashian, there was Hilton, who launched a successful reality show career from her heiress status and a leaked sex tape.

Scherzinger stirred things up on Popstars before she became the lead singer in the Pussycat Dolls.

Zavaleta (right) appeared on both Road Rules and Real World before becoming a Playboy model. (Pictured here with Tiffany Fallon)

Von D is the sexy girl in sleeves from Miami Ink. She also owns her own tattoo shop.

On The Real Housewives of Orange County, De La Rosa was the biggest bad girl of the bunch. She can spend money like none other and she has a big voice.

Ahmed received the stripper name "Caviar" from Ray J on For the Love of Ray J. Her Russian heritage increases her sexy appeal.

Opinionated and argumentative, Bottaa was the resident bad girl on The Real World: Austin.

The America's Next Top Model host is s a fierce supermodel with both brains and brawn.

Whether they're getting into trouble or sizzling on the red carpet, these bad girls rule reality TV.