Who are bigger (in fame and popularity) singers or actors?

In terms of singers, it would be MJ. Thriller is the Highest selling album of all time, and the track "Beat it" was named the most important piece of composed music of the 21st century. It is estimated he has sold over 800 million records worldwide. When Michael Jackson performed at the super-bowl, over 700 million people watched that. Most movies don't even make 700 million dollars let alone get 700 million viewers. Need i go on?