Demi Lovato has been crowned the highest selling Disney artist of 2010. 

The 'Don't You Forget' vocalist is currently in rehab to deal with some "emotional and physical issues" but has enjoyed a great career in music so far after collaborating with pop-rock band We The Kings, appearing in Disney's Camp Rock movies and has released 2 studio albums with a third set for release in 2011. 

An official statement from Disney Infonet said:

"Highest-grossing album sales worldwide labelled with Hollywood Records at the moment is 'Here We Go Again' and 'Don’t Forget' by Demi Lovato."

Super producer Timbaland recently posted a video online that included a song he'd created for the young star and also expressed his admiration for her as an artist. 

Watch Demi's video for 'Don't You Forget' below: