This weekend's Top 20 countdown features (almost) back-to back Bruno Mars and a new tune from Mumford & Sons. While the Grammy-winning folk band are making their way up the charts to No. 20, Mr. Mars is kickin' back at No. 8 and No. 6 with 'When I Was Your Man' and 'Locked Out of Heaven.'

But if you keep scrolling down, you'll also notice that Taylor Swift's latest hit 'I Knew You Were Trouble' has been overtaken by Swedish House Mafia's 'Don't You Worry Child.' It's fitting that the EDM trio take the top slot this week, as they're getting ready for their penultimate shows this weekend and their final performances later in March at Ultra Fest.

Check out this week's Top 20 countdown, and be sure to tune in to hear all of these tracks this coming Sat. (March 9) and Sun. (March 10). Happy listening!

Top 20 Songs: Week of March 4 - 10, 2013

20. Mumford & Sons, 'I Will Wait'
19. One Directon, ‘Kiss You’
18. Olly Murs, ‘Troublemaker’ Feat. Flo Rida
17. The Script, ‘Hall of Fame’ Feat. will.i.am
16. Pink, ‘Try’
15. Rihanna, ‘Stay’ Feat. Mikky Ekko
14. Pitbull, ‘Feel This Moment’ Feat. Christina Aguilera
13. Kelly Clarkson, ‘Catch My Breath’
12. Justin Bieber, ‘Beauty and a Beat’ Feat. Nicki Minaj
11. Imagine Dragons, ‘It’s Time’
10. Justin Timberlake, ‘Suit & Te’ Feat. Jay-Z
9. The Lumineers, ‘Ho Hey’
8. Bruno Mars, ‘When I Was Your Man’
7. Kesha, 'C'Mon'
6. Bruno Mars, 'Locked Out of Heaven'
5. Calvin Harris, 'Sweet Nothing' Feat. Florence Welch
4. Maroon 5, 'Daylight'
3. will.i.am., 'Scream & Shout' Feat. Britney Spears
2. Taylor Swift, 'I Knew You Were Trouble'
1. Swedish House Mafia, 'Don't You Worry Child'

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.