Another week means a new batch of PopCrush's Top 20 songs for May 21-27, 2012. We've selected this week's crop of Top 20 songs based on chart performance, fan support, and the overall number of radio spins it has received thus far. We've got a lot of new songs lined up for this weekend's radio show, including chart debuts from John Mayer, Demi Lovato, Rihanna and Usher.

John Mayer has been off the radar for a while, undergoing throat surgery and recovering from his ailment, but he's back and ready to conquer the airwaves with his twangy, bluesy number 'Shadow Days,' which debuts at No. 20 this week. Demi Lovato's 'Give Your Heart a Break' is also appearing for the first time on our Top 20, coming in behind Mayer at No. 19. Rihanna's newest 'Talk That Talk' single 'Where Have You Been' has shot straight to No. 12 with its debut, and you can expect that one to keep climbing to No. 1. Finally, Usher's 'Scream,' the first single off of his new album 'Looking 4 Myself,' comes in at No. 14.

In other Top 20 news, Coldplay's 'Paradise' has resurfaced after falling off the chart last week. The Wanted and Train are poised to take the highest notches on our Top 20, but who knows if they can beat out Gotye and fun., who have been implanted in the No. 2 and No. 1 spots for the third week straight. Queen Adele is also getting bumped up the charts as more and more new tracks begin to garner airplay.

Check out this week's roundup of the Top 20 Songs (for May 21-27, 2012), and be sure to tune in to PopCrush's weekend radio show this Saturday and Sunday (see a list of stations below) to hear all of these songs in addition to our winning About to Pop track -- newcomer Thomas Fiss has been crowned this week's victor with his feel-good track 'Let Go.'

Top 20 Songs: Week of May 21-27, 2012

20. John Mayer, 'Shadow Days'
19. Demi Lovato, 'Give Your Heart a Break'
18. Karmin, 'Brokenhearted'
17. Coldplay, 'Paradise'
16. Rihanna, 'We Found Love' Feat. Calvin Harris
15. Adele, 'Set Fire to the Rain'
14. Usher, 'Scream'
13. Jessie J, 'Domino'
12. Rihanna, 'Where Have You Been'
11. Flo Rida, 'Wild Ones' Feat. Sia
10. Carly Rae Jepsen, 'Call Me Maybe'
9. Katy Perry, 'Part of Me'
8. Kelly Clarkson, 'Stronger (What Doesn't Kill You)'
7. One Direction, 'What Makes You Beautiful'
6. Maroon 5, 'Payphone'
5. Adele, 'Rumour Has It'
4. Train, 'Drive By'
3. The Wanted, 'Glad You Came'
2. Gotye, 'Somebody That I Used to Know' Feat. Kimbra
1. fun., 'We Are Young' Feat. Janelle Monae

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.