Wrestling star Nikki Bella surprises her biggest fan in the studio, Johnny and Inel take on Sam and Mark in a singing challenge and Eurovision performers, Joe and Jake, perform their latest song.

Hacker T dog and Simeon Qsyea from Taking the Next Step join the boys in the studio to surprise their biggest fans. Sam and Mark take on Jedward in Newcastle for a comedy challenge and there's music from X Factor winner Ben Haenow.