Justin Timberlake and Jessica Biel are just having fun, according to a source close to Timberlake. Rumors of a romance between the two began earlier this month when Biel went backstage at the singer's San Diego concert and continued to surface when the Illusionist star flew to Park City to snowboard and hang out. "It's all about having fun," a source told People mag. "He's trying to have a good time... He is in no way looking to be in a relationship. He's single and happy." Biel is reported to be the source of a well-publicized spat between Timberlake and recent ex Cameron Diaz at Prince's Golden Globes afterparty, where Biel told Timberlake's mom, "He is sooo cute!" I can't say I disagree.