Jessica Stroup is a Breeders Babe

Jessica Stroup is spotted on the set of her hit CW show, 90210, in Beverly Hills on Tuesday.

Pictured below: Stroup and actress pal Brittany Snow at the 25th running of the Breeders Cup on Thursday at the Hollywood Palladium just outside of Los Angeles at Santa Anita Racetrack. Stroup turned 22 on Thursday, too. Birthday celebration at the races!

Mary-Kate Olsen, Kurt Russell, Stacy Kiebler, Dennis Hopper, Julian McMahon, Jamie Lynn Siegler and Jerry Ferrera were among the boldface names spotted betting on the ponies. The event featured a live performance by Maroon 5 and music spun by DJ Joel Madden.