"We were just hanging out one night and he was like, 'Why don't we do a tune together?' " Chasez recalled. "And I was like, 'Sure, man, why not?' And it literally was that easy. And that's actually the second song we wrote. The first song we wrote was called 'God Bless America,' which is a really cool record, and then we did ['Until Yesterday'] and there was just so much magic in it. Between the drama in the story and the music itself, it just kind of stood out from the rest of the stuff we've been hearing lately."

"And you know Justin has got more groove than just about anybody out there, so there is a great combination when the two of us get together in the studio." - JC

"He has a phenomenal record coming out," Chasez said. "Obviously, he's one of my best friends. But 'SexyBack' is a brand-new sound for him, and it's opened up a lot of minds. The safe route would have been to make another record like the last one, because it was so successful. But I like the fact that he said, 'No. I'm going to be artistic. I am going to change my sound,' because that's what he was inspired to do."

"He and I have written three or four songs now that I kind of put a producer hat on for, which was an honor, because in my opinion, he had the best voice out of all of us. Out of all the boy bands, call 'em what you will, he was the one that could out-sing all of us. And I've known him since I was 10, so it was fun to sit behind the board and push him." - Justin

"I remember our conversations about it, I said, 'You're too talented for your own brain. I think that when you have that much talent and you can sing so many different styles, you want to sing all of them." - Justin