Under My Skin is a 2004 album by Avril Lavigne. Under My Skin debuted at number-one on the Billboard 200 albums chart and according to Billboard magazine, was ranked number 149 on the list of top-selling album of the 2000s.
"Breakaway" (Avril Lavigne, Matthew Gerrard) Avril wrote this song for Under My Skin, but it was rejected. This song appears in the album Breakaway by Kelly Clarkson and it was released as the first single of the album.