He didn't sing. Who was he trying to kid? Well, Dawn couldn't blame him for denying it, and she wasn't going to insist on the fact that yes, he did sing, and yes, he was pretty good. What she was already telling him was bad enough.
"No, they aren't. Um...listen. This place is weird, and you know that, right? Well...it gets even weirder. Some people here are from worlds that are...fictional in other people's worlds. Like for instance, I'm from a television show about my sister who's a vampire slayer. And you...you're from a movie called High School Musical."