RIDDLES FOR DAYS!!

YO WHAT'S UP GUYS!!
Today I am back and I have got some fun.
It's riddle time
So here is is.
YOU MAY SEE ME ON TV, IN VIDEOS OR IN PHOTOS, BUT WHEN YOU DO YOU'LL ALWAYS CATCH ME DABBING!
Here are some hints.
1. He appeared at the olympics
2.He has blonde and curly hair
3.He is a viner
4. his name is ***** ****

So hopefully those clues an help you get the answer.
It is a pretty good/hard one.
OK thanks.
TEEHEE!