Two little girls from Essex, England who've become YouTube sensations with their performance of "Super Bass" got a big surprise during an appearance on "Ellen".

Nicki Minaj paid a surprise visit to 8-year-old Sophia and her 5-year-old cousin Rosie during Tuesday's taping of DeGeneres's daytime talk show Tuesday. Minaj was so impressed by the video, which so far has received over 6 million views, she linked it to her Twitter account.

Here's video of Nicki performing the song with the girls.