Lea Michele, Selena Gomez, Liam Hemsworth, Miley Cyrus, and dozens of other fresh faces in Hollywood attend the 2013 Teen Choice Awards; Nina Dobrev celebrates her Cosmo cover with Julianne Hough and Topher Grace at the mag's summer bash; Jane Lynch is honored by Project Angel Food; Angelina Jolie, Natalie Portman, and Chris Evans attend Disney's D3 Expo; rock legends Debbie Harry and Joan Jett check out the new Chris Stein photo exhibition; Kristen Bell, Sophia Bush, Ryan Hansen, and more show their support for Invisible Children—it was a busy weekend of events and celebrations here in L.A. and we have the complete rundown for you in today's Last Night's Parties.