Actually, Larry "The World's Greatest Entertainer" - as he was known and called by his contemporaries - actually died in 1950.
His name was Al Jolson, and he was - and is - the greatest singer of popular music and the greatest on-stage performer that America has ever produced.
Sammy was awesome too. And he also loved Jolie enough to perform medleys of Jolson's best known hits from time to time as well.
I wouldn't mention Michael Jackson - or anyone from the rock era - in the same breath as I would Al and Sammy....