After reigning as the dominant song of December, Beyonce's "Irreplaceable" begins 2007 at No. 1 on the Billboard Hot 100 for a fifth week in a row. The track is also No. 1 on Hot R&B/Hip-Hop Songs… By ...

After reigning as the dominant song of December, Beyonce's "Irreplaceable" begins 2007 at No. 1 on the Billboard Hot 100 for a fifth week in a row. By Jonathan Cohen, Billboard.com, The Associated ...

In The Number Ones, I'm reviewing every single #1 single in the history of the Billboard Hot 100, starting with the chart's beginning, in 1958, and working my way up into the present. If all of your ...