Calum performed Robyn's 2010 pop masterpiece "Dancing On My Own" on last year’s Britain's Got Talent show and was Simon’s Golden Buzzer act - securing over 50 million YouTube views and eventually coming in sixth place in the grand final. Now, one whole year later, he’s peaked at number 6 in the iTunes chart with a studio recording of the song, even making an appearance in this week’s Official Singles Chart Top 40.