Ok, I only remember the start of the song, it's a hip hop song, the start is a lady singing a line like this( hey laga hey laga le, hey laga hey laga le) then some rapping,then she sings the same lines at the end again( it's a english song though) the sounds like rihanna, any ideas?

Ok,so for this song a lady starts singing as an opening(its a rnb/ hip hop song,in english, not an indian song or what what) OK so the opening, sung by the lady goes: hey laag, hey laag laaa... Hey laag, hey laag laaa... Hey laag, hey laag laaa... Hey laag, hey laag laaa... ( Then afew rapping and singing) then just before the song ends, the verse mentioned above is sung again). Not an old song, I say it came out this year or last year, any ideas