Julia Louis-Dreyfus, Tony Hale, Anna Chlumsky, and the rest of the "Veep" cast celebrate the Season 3 premiere; Shakira performs at her iHeartRadio album release party presented by Target; Lizzy Caplan, Michael Sheen and fellow "Masters of Sex" stars field questions at PaleyFest 2014—catch up on Monday's top L.A. events in this installment of Last Night's Parties.