Made in Chelsea Charity Single

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.