More from the all-star sofas in the latest instalment of Celebrity Gogglebox, Rita Ora joins in live in the studio, Little Mix tease us with more of tonight's treats, and Joel Dommett and Nish Kumar take each other on in a ridiculous challenge.

Davina McCall tasks Jamie Laing and Spencer Matthews with creating an A-list charity single featuring their most famous friends. Plus Princesses Beatrice and Eugenie from C4 comedy The Windsors interview Hollywood star Chris O'Dowd. There's more incredible science from Richard Ayoade and Noel Fielding, and Kirstie Allsopp gets physical with Phil Spencer.