Diva smackdown: Madonna vs. Mariah

Chart domination

Both Madonna and Mariah broke chart records in 2008: Mariah notched her 19th No. 1 single on April 1, giving her more than any solo artist in Billboard chart history, while in the same week, Madonna had her 37th top 10 single, the most of any artist ever. Both ladies beat out Elvis Presley to reach their milestones.

Advantage: Madonna. Although 19 No. 1 singles is impressive, Mariah still ranks second in that department to the Beatles. Madge, on the other hand, owns the top 10.