Taylor Swift and Pink are far from newcomers when it comes to the charts, and PopCrush's weekly Top 20 countdown is no exception! Swift is already way up there with 'I Knew You Were Trouble,' but she's also making her debut with '22' this week, as is Pink with her latest single 'Just Give Me a Reason.'

Further down a ways, Bruno Mars is coming in at No. 3 with 'When I Was Your Man,' while Swedish House Mafia are notching in at the second slot. The new reigning kings of the Top 20 are Maroon 5, whose tune 'Daylight' jumps from No. 4 last week to the No. 1 slot this week! Check out what else is in store for this weekend's countdown, and be sure to check out a list of stations where you can tune in below.

Top 20 Songs: Week of March 18 - 24, 2013

20. Fall Out Boy, 'My Songs Know What You Did in the Dark'
19. Taylor Swift, '22'
18. Pink, 'Just Give Me a Reason' Feat. Nate Ruess
17. Of Monsters and Men, 'Little Talks'
16. Krewella, 'Alive'
15. Mumford & Sons, 'I Will Wait'
14. Demi Lovato, 'Heart Attack'
13. Justin Bieber, 'Beauty and a Beat' Feat. Nicki Minaj
12. Olly Murs, 'Troublemaker' Feat. Flo Rida
11. Kelly Clarkson, 'Catch My Breath'
10. Pitbull, 'Feel This Moment' Feat. Christina Aguilera
9. Imagine Dragons, 'It's Time'
8. Rihanna, 'Stay' Feat. Mikky Ekko
7. Justin Timberlake, 'Suit & Tie'
6. Calvin Harris, 'Sweet Nothing'
5. Taylor Swift, 'I Knew You Were Trouble'
4. will.i.am, 'Scream & Shout' Feat. Britney Spears
3. Bruno Mars, 'When I Was Your Man'
2. Swedish House Mafia, 'Don't You Worry Child'
1. Maroon 5, 'Daylight'

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.