The CW Celebrates "90210" 100th Episode

MANHATTAN BEACH, CA - SEPTEMBER 27: (L-R) Actors Trevor Donovan, AnnaLynne McCord, Shenae Grimes, Tristan Wilds, Jessica Stroup, Jessica Lowndes, Michael Steger and Matt Lanter pose at the 100th episode celebration of The CW's "90210" at Manhattan Beach Studios on September 27, 2012 in Manhattan Beach, California. (Photo by Kevin Winter/Getty Images)

The CW Celebrates "90210" 100th Episode

MANHATTAN BEACH, CA - SEPTEMBER 27: Actress AnnaLynne McCord poses at the 100th episode celebration of The CW's "90210" at Manhattan Beach Studios on September 27, 2012 in Manhattan Beach, California. (Photo by Kevin Winter/Getty Images)

The CW Celebrates "90210" 100th Episode

MANHATTAN BEACH, CA - SEPTEMBER 27: Actress Carmen Electra poses at the 100th episode celebration of The CW's "90210" at Manhattan Beach Studios on September 27, 2012 in Manhattan Beach, California. (Photo by Kevin Winter/Getty Images)

The CW Celebrates "90210" 100th Episode

MANHATTAN BEACH, CA - SEPTEMBER 27: Actress AnnaLynne McCord poses at the 100th episode celebration of The CW's "90210" at Manhattan Beach Studios on September 27, 2012 in Manhattan Beach, California. (Photo by Kevin Winter/Getty Images)

The CW Celebrates "90210" 100th Episode

MANHATTAN BEACH, CA - SEPTEMBER 27: Actors Jessica Lowndes (L) and Matt Lanter pose at the 100th episode celebration of The CW's "90210" at Manhattan Beach Studios on September 27, 2012 in Manhattan Beach, California. (Photo by Kevin Winter/Getty Images)

The CW Celebrates "90210" 100th Episode

MANHATTAN BEACH, CA - SEPTEMBER 27: Actress AnnaLynne McCord poses at the 100th episode celebration of The CW's "90210" at Manhattan Beach Studios on September 27, 2012 in Manhattan Beach, California. (Photo by Kevin Winter/Getty Images)

The CW Celebrates "90210" 100th Episode

MANHATTAN BEACH, CA - SEPTEMBER 27: (L-R) David Stapf, President, CBS Television Studios, executive producers Patti Carr, Lara Olsen and Mark Pedowitz, President, CW Network pose at the 100th episode celebration of The CW's "90210" at Manhattan Beach Studios on September 27, 2012 in Manhattan Beach, California. (Photo by Kevin Winter/Getty Images)