Shes done a cover of Knockin On Heavans Door, for the children of the war thing. Heard it a few times n it's ok. Probaby my 3rd fav version, 1st being Guns n 2nd being Dylans Unplugged performance. As for Claptons verson that is just a waste of studio recording time.
My views on Avril is she does contribute to her songs and seems to me to be a little version of Alanis Morrisette. Not orginal, aimed at younger teenagers. Which might not be bad as it could easy them into the rock world.
ps, she would soooooo get it.