Calum Worthy's First Live Action appearance outside Austin & Ally (2011) (which wrapped up by the time this episode premiered), not counting I Didn't Do It (2014) where he still plays his A&A character Dez Wade, as well as the Jessie (2011) part of the 2012 Austin, Jessie & Ally crossover .
Liam says no one has more subscribers than Jiffpom who has 2 million but Victor says he has 5 million subscribers so Liam's statement would be wrong.