It looks like Katy Perry has a thing for dark-haired guys with guitars! On tonight's episode of American Idol, she had zero chill during Trevor Holmes' audition because she was too busy swooning over him. Nicknamed "dreamboat" by Katy's fellow judge Luke Bryan, the singer/songwriter from Thousand Oaks, CA completely charmed Katy with his looks — and he blew the judges away with his voice. Trevor introduced himself and explained that his main passion is music, but he works part-time as a construction worker to support his mother who suffers from Lupus. But while Trevor was explaining his situation, Katy interrupted him to tell him he was hot. "Here’s the thing, only hot guys are typically named Trevor. Trevor, he’s hot, he does construction on the side, and he loves his mom," Katy said, explaining why he was such a catch. The "Swish Swish" singer continued to hit on Trevor,...