Hollywood heavyweights of all ages including Jennifer Aniston, Jack Nicholson, Dakota Fanning, Meryl Streep and Julia Roberts step out to help honor Shirley MacLaine; Stephanie Pratt, Derek Hough and more single famous faces party with OK! Magazine at Roxbury; Jamie Chung, Taryn Manning and others hit E3 to support the fight against AIDS with a night of gaming; Vanessa Williams is honored at the Covenant House California's annual gala—it was yet another bustling Thursday across L.A. and we have the lowdown on who partied where in this installment of Last Night's Parties. More»