The children of late singer Michael Jackson, Prince Michael Jackson II (Blanket), Prince Michael Joseph Jackson Jr. and Paris-Michael Katherine Jackson (L-R) stand on stage during the "Michael Forever" tribute concert, which honours late pop icon Michael Jackson, at the Millennium Stadium in Cardiff, Wales October 8, 2011.[Photo/Agencies]

Michael Jackson's children (L-R) Prince, Blanket and Paris stand on stage during the "Michael Forever" tribute concert, which honours late pop icon Michael Jackson, at the Millennium Stadium in Cardiff, Wales October 8, 2011.[Photo/Agencies]