I get a kick out of these vids, but there's reason to pay attention. You should take time and check out how Elvis Presley "directs" his band at his concerts.
A notable set of examples happens to have taken place in Honolulu at his Aloha concert that he did back in 1973. It's still some of the most legendary concert footage ever done, with equally legendary music. I've got links to the YouTube videos with specific songs citing the different ways Elvis conducts...