Who's Rocking the Jeggings?

The hottest fashion trend of 2010? It's jeggings - really tight jeans made to look like leggings or leggings made to look like really tight jeans.

Nowhere has the trend been more in vogue than in Hollywood. Paris Hilton even wore them to perform community service with Hollywood Beautification Team on Nov. 19, 2010.

"The Town" actress Rebecca Hall was dressed in jegggings when she promoted her film at the 67th Venice Film Festival on Sept. 7, 2010, in Italy.

Kim Kardashian has been spotted in them often, most recently on Nov. 16, 2010, at an event in New York's SoHo neighborhood.

Singer Alicia Keys wore them on stage when she performed a tribute to Prince during the 2010 BET Awards held at the Shrine Auditorium in Los Angeles in June.

Model Amber Rose attends the Pam Hogg Spring Summer 2011 fashion show at On/Off during London Fashion Week on Sept. 19, 2010.

Actress Christina Applegate attends the "Cats and Dogs" film premiere at Grauman's Chinese Theatre on July 25, 2010, in Hollywood, Calif.

Carmen Electra, third from left, is wearing jeggtigs at Betsey Johnson Spring 2011 fashion show during Mercedes-Benz Fashion Week at The Theater at Lincoln Center on Sept. 13, 2010, in New York. To her left is Kelly Osbourne.

"So You Think You Can Dance" host Cat Deeley wore jeggings to the Matthew Williamson Spring Summer 2011 fashion show at Battersea power station during London Fashion Week on Sept. 19, 2010.

Actress Denise Richards arrives at the 6th Annual Pink Party at Drai's at the W Hollywood on Sept. 25, 2010, in Hollywood, Calif.

Singer Fergie of the Black Eyed Peas attends the Samsung 3D LED TV launch party at the Time Warner Center on March 10, 2010, in New York.

Actress Anne Hathaway attends the BAM Belle Reve Gala at the Brooklyn Academy of Music on December 3, 2009, in New York.

Singer Keri Hilson arrives at the G-Star Raw clothing store on Oct. 6, 2010, in New York.

Thos Robinson/Getty Images for Nickelodeon

Actress Victoria Justice attends Nickelodeon's Big Time Rush & Victoria Justice celebrating Back-To-School at Macy's Herald Square on Aug. 15, 2010, in New York.

Madonna's daughter Lourdes Ciccone, who has her own clothing line for juniors, is seen in Paris on Aug. 1, 2010.

British model Kate Moss arrives at the Harper's Bazaar Host Dinner to Celebrate Bryan Ferry's Album Launch at Dean Street Townhouse on Oc. 19, 2010, in London.

Designer Vera Wang attends the Elle Magazine 25th Anniversary party at The Museum of Modern Art on Oct. 26, 2010, in New York.

Neilson Barnard/Getty Images for JCPenney

Twins Mary-Kate Olsen and Ashley Olsen attend the JCPenney Discover Spring Style event at Alice Tully Hall, Lincoln Center on March 2, 2010, in New York.

Michael Loccisano/Getty Images for DailyCandy

Victoria's Secret model Selita Ebanks attends DailyCandy's 10th Anniversary party at the Gansevoort Park Avenue South on Oct. 28, 2010, in New York.

Shakira often performs in jeggings, as seen here on the Pyramid Stage at Glastonbury Festival on June 26, 2010, in England.

Actress Ashley Tisdale attends Kinect for Xbox 360 Launch Party held at a private residence on Oct. 23, 2010, in Beverly Hills, Calif.

Actress Michelle Trachtenberg attends the 10th Anniversary Lucky Shops VIP Night at Metropolitan Pavilion on Nov. 4, 2010, in New York.

"Wheel of Fortune" host Vanna White attends the Lotus Cars Launch event on Nov. 12, 2010, in Los Angeles.

Andrew H. Walker/Getty Images for Target

Actress Naomi Watts attends the debut of the Liberty of London for Target Shopping Experience at The Liberty of London for Target Pop Up Store on March 10, 2010, in New York.

Actress Anna Kendrick attends the EW and SyFy party during Comic-Con 2010 at Hotel Solamar on July 24, 2010, in San Diego, Calif.

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