They're the British YouTube stars who just won't quit!

Sophia Grace and Rosie make their big return to "The Ellen DeGeneres Show" on today's show -- and they've come equipped with some celebrity fans and a new Nicki Minaj song.

Before singing Nicki's newest single, "Starships," the two adorable girls told the talk show host about some of their famous Twitter followers.

"Well, we both have fan clubs," Sophia explains. "Rosie has one and I’ve got one but on my fan club we looked at it one day and Britney Spears was following me."
"And, Justin Bieber tweeted about us," Rosie added.
Not too shabby, right?

Check out some of their performance above. The full interview airs today on "The Ellen DeGeneres Show."

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