Tops at iTunes

iTunes' Official Music Charts for the week ending Jan. 21.

1. "Thrift Shop," Ryan Lewis and Macklemore, featuring Wanz

2. "Suit & Tie,"

Justin Timberlake, above, featuring Jay-Z

3. "I Knew You Were Trouble," Taylor Swift

4. "Scream & Shout," will.i.am, featuring

Britney Spears

5. "Ho Hey,"

The Lumineers