What is this pop song please help?

well its like a pop song i guess and it might be newer im not sure. i dont know in of the lyrics cuz it was hard to tell cuz of where i was at. but i know in the song like the chorus is a girl saying Yeah yeah yeah yeahhhh. and thats all i know. its not rhianna or avril lavine. it might be kesha idk. but its kind of a soft pop song so please help