It was officially announced today that Mariah Carey surpassed Elvis to score the second-place slot for most No. 1 singles in the rock era. "Touch My Body" is her 18th No. 1, while the Beatles maintain the top slot with 20 No. 1 hits. With Mariah's new album, E=MC2, dropping on April 15 and her incredible ability to churn out hits, there's a good chance that she could break the Beatles' record. What do you think — will Mariah surpass the Beatles for most No. 1 singles of all time?