a lot of pop music is full of beats and pounds. they usually have a lot of repetitive beats as well like bump bump bump or bew bew bew, the artists of pop music like to create a song that goes with a certain beat, if the beat doesn't work, the song doesnt work.
try mika for example, high pitch voice, he has beats that go along very well with his music. he finds ways to work it well. some artists can do it, others cant, its a form of music thats fairly hard to accomplish.