name that song
 

Well its a pop song and on the clip there is ugly men (he looks like an allien) who felt in love with a women where he work and she never liked him, she always tried to stay away from him, one day some guys tried to sexual harass her but the "ugly men" came and beated these guys and then they loved each other and bla bla bla. anyone knows the song name ? i forgot and I need it urgently.

Thanks