My predictions for now...
1. Macklemore & Ryan Lewis featuring Wanz, "Thrift Shop" (=)
2. Bruno Mars, "When I Was Your Man" (+2)
3. Justin Timberlake featuring Jay-Z, "Suit & Tie" (=)
4. Rihanna featuring Mikky Ekko, "Stay" (+1)
5. Baauer, "Harlem Shake" (-3)
6. P!nk featuring Nate Ruess, "Just Give Me a Reason" (=)
7. Pitbull featuring Christina Aguilera, "Feel This Moment" (+1)
8. Drake, "Started from the Bottom" (-1)
9. Lil Wayne featuring Drake, "Love Me" (=)
10. Taylor Swift, "I Knew You Were Trouble." (=)
Thrift Shop should sell 200-220K.