Christina Milian, Jenna Ushkowtiz and Shenae Grimes get costumed up for the 3rd Annual Midori Green Halloween; Ali Larter, Chad Michael Murray, Hilary Swank, and others celebrate the opening of Lucky Brand store in Beverly Hills; Rachel Bilson, Elisabeth Moss, Alessandra Ambrosio and many more attend the Chloe Los Angeles Fashion Show and Dinner featuring a performance from HAIM—catch up on Tuesday's top events in this installment of Last Night's Parties.
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