Here's the low-down on this week's top 10 songs.

The Top Five: Rihanna's "Diamonds" jumps from #2 to #1 in its eighth week on the chart. This is its fifth week in the top 10. Digital sales rank: #1 (171K)…Maroon 5's "One More Night" dips from #1 to #2 in its 22nd week on the chart. This is its 14th week in the top 10. Digital sales rank: #7 (119K)… Ke$ha's "Die Young" holds at #3 for the second week in its eighth week on the chart. This is its fifth week in the top 10. Digital sales rank: #4 (133K)… Bruno Mars' "Locked Out Of Heaven" jumps from #6 to #4 in its seventh week on the chart. This is its fourth week in the top 10. Digital sales rank: #3 (148K)… fun.'s "Some Nights" dips from #4 to #5 in its 39th week on the chart. This is its 15th week in the top 10. Digital sales rank: #11 (89K).