Two songs that deftly blend country and hip-hop influences reign as the longest-leading No. 1s on the Billboard Hot 100 chart ...

This chart-topping song (on multiple formats) spent 13 weeks at No. 1 on both the Mainstream Rock + Alternative Airplay ...

"The kicky, 23-year-old British singer released her second album, the break-up requiem 21, in February, but it wasn't just ...