With his much-anticipated film debut, 'Never Say Never,' due to hit the big screen on Feb. 11, multiplatinum music phenom Justin Bieber is putting the finishing touches on the movie's soundtrack. One high-profile songwriter who has wrapped up studio time with the teen superstar is Ester Dean, the Grammy-nominated talent behind hits by Rihanna ('Rude Boy,' 'What's My Name?'), Usher ('Hot Tottie') and Katy Perry ('Firework').

According to Dean, the in-demand Bieber -- who has become a pop culture behemoth, selling over 3 million copies of his debut album 'My World' and over 1 million of the release's extended edition, 'My World 2.0' -- took her by surprise with his humble demeanor. "I first met Justin with Usher at an 'American Idol' event," Dean told PopEater. "He was like, 'Oh my God ... I'm such a fan of your songwriting!' And I'm like, 'You're a fan? [laughs] I'm a fan of your music!'"