Meanwhile, over on the Digital Songs chart, Bruno Mars' "Grenade" continues to hold at No. 1 for a fourth week in a row, shifting 275,000 (down 35%). Katy Perry's "Firework" also maintains its position at No. 2 (230,000; down 42%). Enrique Iglesias' "Tonight (I'm Lovin' You)" rises two to No. 3 (192,000; down 29%), Wiz Khalifa's "Black and Yellow" is up three to No. 4 (186,000; down 29%), and the Black Eyed Peas' "The Time (Dirty Bit)" climbs three to No. 5 (181,000; down 30%). Ke$ha's "We R Who We R" drops three to No. 6 (174,000; down 46%), Lil Wayne's "6 Foot 7 Foot" rises five spots to No. 7 (160,000; down 12%), and P!nk's "Raise Your Glass" slips four to No. 8 (158,000; down 42%). Closing out the top 10 is Rihanna's "What's My Name?," down three to No. 9 (150,000; down 43%) and Taio Cruz's "Dynamite," up three to No. 10 (125,000; down 31%).
Source
www.billboard.com