Elvis Presley demoted as Mariah Carey slides up

Elvis Presley, the original King of Rock, mysteriously disappeared from the upper echelons of a new list that ranks the artists with the most No. 1 hits on the U.S. pop singles chart. Until April, Elvis Presley and Mariah Carey tied at No. 2 on Billboard's list of the top acts of the rock era with 17 No. 1 tunes each, behind the Beatles with 20. But then Carey took sole possession of the silver medal when her single "Touch My Body" hit the top spot.