See more from Britain's Got Talent at itv.com/talent
Calum appears nervous as he takes to the stage after his sister Jade fails to win the backing of the Judges.
But the 26-year-old's rendition of Dancing On My Own by Robyn earns him a standing ovation from the audience, and he books his place in the live shows when Simon presses the golden buzzer.
SUBSCRIBE: bit.ly/BGTsub
Facebook: / bgt
Twitter: / bgt