Ben Stiller, Christine Taylor, Jonah Hill and more celebrate the Hollywood premiere of The Watch; Mindy Kaling, Britney Spears and other stars of FOX's fall lineup take the hot seat at the TCA's Summer Press Tour; FOX throws their All-Star Party at Soho House for stars like Lea Michele, Zooey Deschanel and Seth MacFarlane; Katy Perry and other locals with great taste in music go see Haim open for The xx in Hollywood—here's how L.A. pretty much covered all the entertainment industry bases Monday with movies, TV and music in this installment of Last Night's Parties.

Ben Stiller, Jonah Hill, Vince Vaughn [via]