Everything We Know About Fuller House – So FarGet all the details on Netflix's Full House reboot, which begins streaming on Feb. 26

IT WAS A FULL HOUSE ON SET

Sweetin, who is reprising her role as middle Tanner daughter Stephanie, told PEOPLE that her own children, Beatrix and Zoie, will occasionally join her on set. In fact, the day our reporter was there, Beatrix was charming John Stamos with a rendition of Katy Perry's "Roar" – and later cheered "Yay, Mama!" for Sweetin.