Emmy Rossum, William H. Macy and the cast of Showtime's "Shameless" field questions at a panel and screening event; Nikki Reed sings at Erik Wahl's book launch; Steve Tisch, Oliver Stone and other friends of NYU attend a reception for the Tisch School of the Arts; "The Young and the Restless" celebrates 40 years on air; Emma Watson, Gwen Stefani, Chloe Sevigny, Gavin Rossdale and more join Sofia Coppola for the L.A. premiere of The Bling Ring—get the lowdown on Tuesday's top events in today's edition of Last Night's Parties.