"Hey, Stephanie didn't write any correct? She just chose songs to sing."
You're correct that she didn't write any songs. However, she didn't just choose any songs. The theme of the album was to perform the song with its composer, whether they be singing a duet ("I Will Always Love You"), backup singing ("15 Pounds"), or playing an instrument to accompany Stephanie (the rest). She feels that it adds something to the song when the person who knows it best performs it. I think it was a brilliant idea.
kchenofan's computer is broken right now. This is her fridge. Now, you can leave a message, but say it slowly, so I can write it on a post-it note and stick it to myself.