First, they were just two kids jamming to 'Superbass' by Nicki Minaj...
Then, they became two of Ellen's cutest red carpet reporters and interviewers.
Sophia Grace and Rosie took the world by storm when they were little kids, but now that they're older, they've moved into the music business.
Sophia Grace released her first single 'Girls Gotta Have Fun' back in 2013 and she's released a few other singles since then, like 'Why U Mad':
Now Rosie McClelland has released her own single called 'Handstand' and yes, it's all about doing handstands!
Where did the time go?
We feel super old right now...