JodieMarsh transformed herself from a glamour model to a body builder, David Walliams swam the length of the Thames, Eddie Izzard ran a marathon a day, six days a week for seven weeks.
Street of Dreams will feature Paul O'Grady as the narrator plus Street stars Kym Marsh, Katy Cavanagh and Brian Capron as well as Jodie Prenger, winner of TV talent show I'd Do Anything.