Katy Perry leads the charts

The spinning wheel atop the Billboard Hot 100 singles chart came to a halt for the first time in almost two months on Thursday, as Katy Perry's "Firework" logged a second consecutive week at No. 1.The last song to spend successive frames at the top of the Hot 100 was "Like a G6," by Far*East Movement in late-October. Since then, five tunes have enjoyed weeklong stints at No. 1 with "Like a G6"