''Under My Skin'' is the second studio album by Canadian singer-songwriter Avril Lavigne, released worldwide on May 25, 2004; It was her last album with Arista Records. ''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. It has sold over 10 million copies worldwide. - Wikipedia