Little Mix have certainly made a name for themselves since winning the U.K. version of "The X Factor" back in 2011, but die-hard Mixers know that wasn't their original name.

The girl group originally went by Rythmix, but switched it up on "The X Factor" to avoid being confused with a musical charity of the same name. And we're sure glad they did, because the girls are now in an elite group of artists, brands and movie characters that use the word "Little" in their name.

When the girls stopped by MTV News recently to talk all about their new album, Salute, and joining Demi Lovato's on her Neon Lights tour, we decide to quiz the British girl group on just how well they knew their other Littles.

From "Pretty Little Liars" to One Direction's "Little Things" to "Stuart Little," we covered a wide spectrum on all things Little. So did we stump the girls? Check out the video to find out!