"90210's" Shenae Grimes hosts the launch of Chinese Laundry Fashion Denim at Eden; Eddie Cibrian, Adrien Brody and others practice their racing line at the 36th Annual Toyota Pro/Celebrity Charity Race practice day; Gene Simmons hosts an opening day party for his new backstage concert-themed restaurant, Rock & Brews—get the lowdown on who partied where at Tuesday's top events in L.A. with this installment of Last Night's Parties!

Adrien Brody [via], Allison Melnick, Dennis Griffis, Shenae Grimes [via]