Ellen DeGeneres on Thursday's episode, and it’s hard to believe how much time has passed since their first time on the show in 2011. “My first memory, because I was obviously five years old, so I don’t remember a lot, but the first thing I remember obviously was Nicki Minaj coming out,” Rosie shares. “At that point I didn’t know who she was and then it clicked, ‘Oh Sophie’s singing this song, she must be Nicki Minaj, the one singing it.’” The duo, who were five and eight at the time of their first appearance in 2011, went viral after a video of them performing Minaj's “Super Bass” in pink tutus and tiaras went viral.