Jessica and Ashley Simpson (36 images)

Singer and actress Jessica Simpson arrives for the taping of the 2006 MTV Movie Awards at Sony Picture Studios in Culver City, California on June 3, 2006. (UPI Photo/Jim Ruymen)

Ashley Simpson appears at a cd signing for her new single "outta my head" at Wal-Mart in Sunrise, Florida on March 8, 2008. (UPI Photo/Michael Bush)

Singer and actress Jessica Simpson arrives for the taping of the 2006 MTV Movie Awards at Sony Picture Studios in Culver City, California on June 3, 2006. (UPI Photo/Jim Ruymen)

Jessica Simpson waves to fans before her appearance on "Live@Much", a live show taped at MuchMusic's streetlevel studios on Queen Street West July 31, 2005 in Toronto, Canada. Her "Dukes of Hazzard" co-stars Johnny Knoxville and Seann William Scott were also on hand at the show to promote their film due to open soon in theaters. (UPI Photo/Christine Chew)