1. Chart Highlights: Ke$ha, Rihanna Blast Back Onto Pop Songs

    October 01, 2012 3:05 PM EDT 0 0 0 The singers soar onto the chart, which Maroon 5 leads with 'One More Night.' Also: new No. 1s for Nicki Minaj, Mumford & Sons and Carlos Vives. Chart Highlights offers a sneak peek at a select group of Billboard charts every Monday. Fi ...