One Direction are back in the Top 20 countdown this week with their ballad 'Little Things,' while will.i.am and Britney Spears are movin' on up with their collabo 'Scream & Shout.' 

Further down the countdown, Bruno Mars continues his well-deserved No. 1 domination as the Lumineers and Rihanna round out the Top 3.

Check out which other songs made the countdown (including two Maroon 5 tracks) below, and be sure to tune in this weekend to hear all 20 of these awesome tunes.

Top 20 Songs: Week of January 7-13, 2013

20. One Direction, 'Little Things'
19. Maroon 5, 'Daylight'
18. Calvin Harris, 'Sweet Nothing' Feat. Florence Welch
17. Alicia Keys, 'Girl on Fire'
16. Pitbull, 'Don’t Stop The Party' Feat. TJR
15. will.i.am, 'Scream & Shout' Feat. Britney Spears
14. fun., 'Some Nights'
13. Ed Sheeran, 'The A Team'
12. Swedish House Mafia, 'Don't You Worry Child'
11. Pink, 'Try'
10. Phillip Phillips, 'Home'
9. Kesha, 'Die Young'
8. Ne-Yo, 'Let Me Love You (Until You Learn to Love Yourself)'
7. Maroon 5, 'One More Night'
6. Taylor Swift, 'I Knew You Were Trouble'
5. Justin Bieber, 'Beauty and a Beat' Feat. Nicki Minaj
4. Flo Rida, 'I Cry'
3. Rihanna, 'Diamonds'
2. The Lumineers, 'Ho Hey'
1. Bruno Mars, 'Locked Out of Heaven'

Note: Every Monday, PopCrush will publish a list of our Top 20 songs for that given week. Then, over the weekend, fans can tune in to our national radio show to hear all of these hot songs plus some other amazing pop tunes. To see a list of radio stations where you can hear the PopCrush Top 20 countdown, click here.