ShowbizElvis set for a 21st No.1Metro11 April 2012Elvis Presley is in line to break another record on Sunday with his third No.1 single in as many weeks.The re-release of A Fool Such As I is outselling closest rivals The Chemical Brothers by three to one.It would give Presley his 21st chart-topper after One Night last week and Jailhouse Rock the week before.MORE ABOUTThe Chemical BrothersTrip Hop