PLEASE HELP!!!!!!

HeY!!!! OKAY i realy like this song but i forgot the name and the person who sings it but i DO know the beat if u could understand this it would be Awe SOME!! ok here goes... dun dun dun dun dun dun dun dun dunnn naa na na na na na na na na na na na and that beat keeps going and going and also one of the lyircs i think are "i dunno wat she sayin but i..." and a guy(s) RAPS, so i guess it would be classified in rap or r&b thats all and girls there like mouse talking in chinese very weird but i like it someone said 2 me it was r.kelly but i checked i don't think it is so if u can tell me who it is that would be great cuz i relli like this song ok peace to yall....

P.S.- they made a video to it and I think it came out last yr...