It's a second trip to #1 on the Billboard Top 200 album chart for John Mayer with his new collection Battle Studies. Another artist is one step away from her third #1 pop single in less than a year. Check out all the details in this week's coverage of the US pop music charts.

_{Album cover courtesy Columbia Records}

Rihanna turns casts an uncompromising eye on her recent experiences and current state. Is this an artistic statement you can warm up to? Read more in the review of Rated R.

_{Album cover courtesy Def Jam}

This week the chart is topped by clearly the hottest artist in popular music of the moment. She is followed by nine other great songs on the rise. Check out all the details in this week's Top 10 Hot Pop Songs chart.

These are the songs that made the decade that is coming to a close a great one for pop music. Check out all of the great music! Enjoy the complete list of the Top 100 Pop Songs of the 2000s