Some of Hollywood's biggest stars came together during the GQ Men of the Year party in LA on Thursday, and it was full of exciting celebrity pair ups. Exes Zachary Quinto and Jonathan Groff had a friendly reunion, while former Gossip Girl costars, Sebastian Stan and Chace Crawford, had a mini reunion of their own as they caught up with each other during the party. And let's not forget about all the gorgeous eye candy on the red carpet. Jesse Williams made us swoon over his dreamy eyes, while This Is Us star Justin Hartley looked extremely dapper in his glasses. See even more fun moments from the party below, then vote for the sexiest guy of 2017.