Conan O'Brien will host this year's Emmy Awards, it was announced on Saturday. This is the second hosting gig for the late night funnyman. At the press conference, O'Brien joked about the effect of the summer heat on his famous hairdo. "Barometric pressure has a lot to do with how my hair holds up," he said. "I can't believe it's holding up in this heat." The first group of presenters were also announced at the press conference, and include Felicity Huffman, Hugh Laurie, Julia Louis-Dreyfus, Matthew Perry and Jon Stewart. The Emmy Awards will air on August 27.