Male Pop No. 1s: '00s

While '90s superstars like Ronan Keating and Robbie Williams retained a firm hold on the pop charts in the '00s, a brand-new crop of stars was busy moving in. This collection has some of the biggest smashes of the era—young breakout star Sean Kingston makes you sing along, James Blunt offers the ultimate heartfelt compliment and Enrique Iglesias saves the day.