Joe, Harpz and Stanley are joined by Stacy Liu and Leo James from CBBC's The Dumping Ground, online comedian Kyron Hamilton, singer Amber T and Strictly star Tom Fletcher.

Stanley becomes a holiday park entertainer for the day, there's another surprise head-to-head challenge for Joe and Harpz, and laughs with Mashville High.

Expect cartoon chaos in Ninja Express and Boy Girl Dog Cat Mouse Cheese and adventures with the Odd Squad, with loads of chances to take part in the show from home. Mash-Up is totally live...so anything can happen! Show less