It's called the Guys Choice Awards, but Spike TV's 2014 show is all about Hollywood's sexiest women. With the support of former costars Matthew McConaughey and Hugh Grant, Sandra Bullock took home the decade of hotness award when the show took place last Saturday. As for the most desirable woman honor, that trophy went to none other than Rihanna, who got silly with Aaron Paul backstage. Meanwhile, Cameron Diaz was all smiles with her Sex Tape costar Jason Segel, and Jaime King, Rosario Dawson, and Jessica Alba formed a trifecta on stage and behind the scenes. Keep reading to see the best pictures before the show airs on Spike TV today at 9 p.m./8 p.m. Central!