Chris Brown has ended hip-hop sensation Soulja Boy's reign at the top of the U.S. pop charts with his new song Kiss Kiss. Brown's collaboration with rapper T-Pain has toppled Soulja Boy's Crank That (Soulja Boy), which spent seven weeks at number one. Soulja Boy's hit falls to three on the new countdown, while Timbaland's Apologize climbs to two. Country star Gary Allen claims the highest debut on the new chart with his Watching Airplanes, which enters at 89. In other U.S. singles charts, Foo Fighters' The Pretender claims an 11th week atop the Modern Rock countdown, while Colombian hitmaker Juanes' Me Enamora scores a seventh week at number one on the Hot Latin Songs list.