Top 5 selling singles on iTunes for week ending Dec. 21
Top 5 selling singles on iTunes for week ending Dec. 21:
• “Grenade”: Bruno Mars
• “Firework”: Katy Perry
• “We R Who We R”: Ke$ha
• “What’s My Name?”: Rihanna & Drake
•“Bottoms Up”: (feat. Nicki Minaj) Trey Songz