Heelp me identify this soong please!

They played this at my dance school

I THINK its sang from a korean group/rapper/singer

"*guy's voice*
Welcome to the party! (Yeah , yeah , let's go now)

*girl voice*
"Put your hands up, hands up!
-sings in korean I think..-
Welcome to the big party yeeah"

Im sorry for such short lyrics but it was really hard trying to understand it...

PS.
The song is very Hip-Hop/R&B/Dance like

Madonna - Incredible
or
gwen stefani-crash