Jennifer Morrison Style Pictures: Tao Nightclub Las Vegas Four-Year Anniversary Party Photos

Jennifer Morrison arrives in style at Tao nightclub inside the Venetian Hotel and Casino for the club's four-year anniversary party on October 3, 2009 in Las Vegas, Nevada.

Diddy served as emcee for the evening, giving multiple shout-outs to DJ Vice and fighter Floyd Mayweather Jr. The music mogul also gave a brief performance and led the crowd in singing "Happy Birthday" to the club.

The evening also included a one-year anniversary toast to sister spot Lavo nightclub, located next door at the Palazzo Hotel.

Picture copyright: PRN / PR Photos