What's in store for this weekend's PopCrush radio show? Jason Derulo is making his debut at No. 20 with 'The Other Side,' and Avril Lavigne is also clocking in for the first time in 2013 with her brand-new single 'Here's to Never Growing Up.' 

Further down, Icona Pop advances from No. 11 to No. 7, while Bruno Mars, Pink and Rihanna are sitting pretty in the tip-top spots. Check out which other songs you'll hear on PopCrush's weekend radio show this coming Saturday and Sunday below, and click through for a list of stations where you can tune in. 

Top 20 Songs: Week of April 29 - May 5, 2013

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

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.