Overview: The host presents a themed edition of his chat show, with jockey Frankie Dettori among his guests, and the draw for Channel 4's Celebrity Twitter Sweepstake. Joining in the fun are US pop star Enrique Iglesias, who performs his single I'm a Freak, rapper and producer Will.i.am, who talks about the final of The Voice and his coaching role on the BBC One talent show, and actress Ruth Jones, discussing her hit Sky1 comedy drama Stella