Beyoncé's "Check on It" featuring Slim Thug rises one rung to claim the No. 1 spot on the Billboard Hot 100 this week. The cut ends the two-week run of Nelly's "Grillz" featuring Paul Wall and Ali & Gipp, which falls to No. 2. The Beyoncé track is also the Hot 100's greatest airplay gainer, and remains atop the Pop 100 and the Hot Digital Songs charts.