sentences:  Furthermore, Lavigne embarked on a concert tour, entitled The Best Damn World Tour, starting on March 8, 2008, and ending on October 6, 2008.Footage from the concert at the Air Canada Centre in Toronto were recorded and released on a DVD titled "".Following the release of her second album "Under My Skin" (2004) and a world tour, Lavigne began recording material for her third album.