Joe Jonas and Jamie Lynn Sigler attended the Guess + GQ Celebration Party for the magazine’s November music issue at The Sayers Club in Hollywood. Celebrity guests, including Lord of the Ring’s Dominic Mongahan, Hung’s Stephen Amell, Parenthood’s Michael B. Jordan, Greys Anatomy’s Jesse Williams, enjoyed a performance by rapper Theophilus London and music by DJ Michelle Pesce. Sigler is wearing Guess at the star-studded event.
90210′s Shanae Grimes looked hip in a distressed jean jacket paired with a black top and pants at the Guess +GQ Celebration Party.


