HOT LIST: Sneaky Sexy Stars

Surprisingly Sexy Stars Some celebs like Kim Kardashian and Megan Fox ooze sex appeal. Others keep their sex appeal under wraps. Check out Hollywood's best kept secret sexy stars. <a href="http://twitter.com/@fox411" target="_blank">Follow FOX411.com on Twitter.</a>

Keira Knightly Keira Knightly’s rocking abs debuted in "Bend It Like Beckham," and since then the 25-year-old "Pirates of the Caribbean" beauty has proven that she has that magical combination of youthful innocence, subtle sexiness, and runway-ready which make her secretly one of the sexiest gals in Hollywood. <a href="http://www.radaronline.com/photos/image/112236/2011/02/secret-sexy-people-hollywood">See more sexy shots of Keira here</a> and <a href="http://www.radaronline.com/photos/image/111439/2011/01/skinny-curvy-bikini-babes">click here to take a look at skinny versus curvy bikini babes.</a> <a href="http://twitter.com/@fox411">Follow FOX411.com on Twitter.</a> (2010 Getty Images)

Ashley Greene "Twilight" star Ashley Greene posed in just body paint for a photo shoot but she is sweet enough to date a Jonas brother. We think this 23-year-old Jacksonville native's a perfect 10, naughty or nice. <a href="http://www.radaronline.com/photos/image/112189/2011/02/secret-sexy-people-hollywood">Check out more sexy pics of Ashley here</a>, and <a href="http://www.radaronline.com/photos/image/104580/2010/12/photos-bikini-calendar-girls">click here to see more of the year's sexiest calendar babes in their bikinis.</a> <a href="http://twitter.com/@fox411" target="_blank">Follow FOX411.com on Twitter.</a> (2010 Eugene Gologursky)

Chris Hemsworth Chris Hemsworth is the boy next door, and this gorgeous 27-year-old Aussie is hitting the big screen as a hunky action star in "Thor" and "The Avengers." Keep an eye out for this new sexy arrival to Hollywood. <a href="http://www.radaronline.com/photos/image/112194/2011/02/secret-sexy-people-hollywood">Take a look at more sexy shots of Chris here</a> and <a href="http://www.radaronline.com/photos/image/111470/2011/01/lesser-known-bikini-babes">click here to check out international bikini babes.</a> <a href="http://twitter.com/@fox411" target="_blank">Follow FOX411.com on Twitter.</a> (2011 Jordan Strauss)

Whitney Port Pretty, blonde Whitney Port, is a 25-year-old beauty classy enough for a Debutante Ball, yet hot enough to party in her bikini in Miami. This girl next door is climbing up the list of Hollywood hotties and beating out her "Hills" co-stars as a secretly sexy star. <a href="http://www.radaronline.com/photos/image/112205/2011/02/secret-sexy-people-hollywood">Check out more sexy pictures of Whitney here</a> and <a href="http://www.radaronline.com/photos/image/112345/2011/02/topless-bikini">to see which sexy Hollywood stars go topless on the beach click here!</a> <a href="http://twitter.com/@fox411" target="_blank">Follow FOX411.com on Twitter.</a>

Vanessa Hudgens Vanessa Hudgens is a sexy 22-year-old "High School Musical" brunette who's got that right blend of youthful innocence and pure good looks to play the bubbly cheerleader, snotty prom queen or sultry seductress. <a href="http://www.radaronline.com/photos/image/112184/2011/02/secret-sexy-people-hollywood">See great bikini pics of Vanessa here</a> and <a href="http://www.radaronline.com/photos/image/111066/2011/01/barely-covered-bikini-boobs">click here to see photos of barely covered bikini boobs!</a> <a href="http://twitter.com/@fox411" target="_blank">Follow FOX411.com on Twitter.</a> (2010 Getty Images)

Mark Zuckerberg Mark Zuckerberg is dorky enough to be the boy next door, but cunning enough to take over the world of social networking, we can think of a few billion reasons ladies would be drawn to the boyish Harvard grad. <a href="http://www.radaronline.com/photos/image/112231/2011/02/secret-sexy-people-hollywood">Check out more photos of dashing Mark here</a> and <a href="http://www.radaronline.com/photos/image/94760/2010/10/good-taste-bikinis-bad-taste-boys">click here to see more celebs that have good taste in bikinis and bad taste in boys.</a> <a href="http://twitter.com/@fox411">Follow FOX411.com on Twitter.</a> (2010 Bloomberg)

Kate Middleton Kate Middleton is a royal beauty in every way, but what most don't know about the 29-year-old future Queen is that she's got a tight, toned bod she's shown off on her yachting outings with her hubby-to-be, Prince William. <a href="http://www.radaronline.com/photos/image/112199/2011/02/secret-sexy-people-hollywood">See more sexy shots of Kate here,</a> and <a href="http://www.radaronline.com/photos/image/100558/2010/11/fox-photos-royals">click here to take a look at the sexiest young royals.</a> <a href="http://twitter.com/@fox411" target="_blank">Follow FOX411.com on Twitter.</a> (2010 Indigo)

Simon Baker If Simon Baker, the 40-year-old star of "The Mentalist," could read our minds, he'd know we think he's a secret sex symbol with his blue eyes, blonde hair and gorgeous smile. <a href="http://www.radaronline.com/photos/image/112210/2011/02/secret-sexy-people-hollywood">Check out more photos of sexy Simon here</a> and <a href="http://www.radaronline.com/photos/image/74692/2010/07/sexy-spies">click here to see sexy stars who've played spies.</a> <a href="http://twitter.com/@fox411">Follow FOX411.com on Twitter. </a> (Mandatory Credit: FayesVision/WENN.com)

Kristen Bell Kristen Bell’s smile is charming onscreen but the 30-year-old actress can rock a bikini like no other! Her sexy yoga moves in "Couples Retreat" made us realize why Kristen is steaming it up a notch now. <a href="http://www.radaronline.com/photos/image/112215/2011/02/secret-sexy-people-hollywood">See more photos of Kristen looking hot here,</a> and to take a look at the <a href="http://www.radaronline.com/photos/image/109376/2011/01/hollywood-walk-fame-bikini-babes">sexiest bikini babes on the Hollywood walk of fame click here. </a> <a href="http://twitter.com/@fox411" target="_blank">Follow FOX411.com on Twitter.</a> (2010 Getty Images)