Check out PopCrush's lineup for the Top 20 Songs this week -- Bruno Mars is dominating not because he's No. 1, but because he's the only artist with two tracks on the countdown this week! His latest 'Unorthodox Jukebox' single 'Treasure' is debuting at No. 20, while 'When I Was Your Man' notches in at No. 7.

Further down the Top 20 Songs, you'll see the ladies of Icona Pop moving on up with 'I Love It,' with the upbeat sing-along jumping from No. 5 last week to No. 3 this week. Meanwhile, Pink and JT are still stationed atop the countdown, with 'Just Give Me a Reason' coming in at No. 2 and 'Mirrors' gaining top honors.

Take a look at the entire list below, and be sure to click through to see a list of stations where you can tune in to PopCrush's weekend radio show, featuring the Top 20 countdown.

Top 20 Songs: Week of May 27 - June 2, 2013

20. Bruno Mars, 'Treasure'
19. Avril Lavigne, 'Here's to Never Growing Up'
18. Krewella, 'Alive'
17. Emeli Sande, 'Next to Me'
16. Taylor Swift, '22'
15. Daft Punk, 'Get Lucky' Feat. Pharrell Williams
14. Mariah Carey, '#Beautiful' Feat. Miguel
13. Pitbull, 'Feel This Moment' Feat. Christina Aguilera
12. Ariana Grande, 'The Way' Feat. Mac Miller
11. Jason Derulo, 'The Other Side'
10., '#thatPOWER' Feat. Justin Bieber
9. Fall Out Boy, 'My Songs Know What You Did in the Dark (Light Em Up)'
8. Florida Georgia Line, 'Cruise' Feat. Nelly
7. Bruno Mars, 'When I Was Your Man'
6. Selena Gomez, 'Come & Get It'
5. Rihanna, 'Stay' Feat. Mikky Ekko
4. Demi Lovato, 'Heart Attack'
3. Icona Pop, 'I Love It' Feat. Charli XCX
2. Pink, 'Just Give Me a Reason' Feat. Nate Ruess
1. Justin Timberlake, 'Mirrors'

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.