What's in store for PopCrush's radio show this weekend? Well, Katy Perry and Maroon 5 are still holding on to the top two spots on the countdown, while Ellie Goulding continues to climb the charts with 'Lights.'

Meanwhile, Ed Sheeran's 'The A Team' is making its Top 20 debut, as are Grouplove and their anthemic indie-pop track 'Tongue Tied.' But who else is charting this week? Check out this week's roundup of the Top 20 Songs to see what you'll be hearing on our weekend broadcast (in addition to our winning About to Pop track, Marina and the Diamonds' 'Primadonna').

Top 20 Songs: Week of Aug. 12-19, 2012

20. No Doubt, 'Settle Down'
19. Ed Sheeran, 'The A Team'
18. David Guetta, 'Titanium' Feat. Sia
17. Matchbox Twenty, 'She's So Mean'
16. Grouplove, 'Tongue Tied'
15. Owl City + Carly Rae Jepsen, 'Good Time'
14. Rihanna, 'Where Have You Been'
13. Karmin, 'Brokenhearted'
12. One Direction, 'What Makes You Beautiful'
11. Kelly Clarkson, 'Dark Side'
10. Demi Lovato, 'Give Your Heart a Break'
9. fun., 'Some Nights'
8. Gotye, 'Somebody That I Used to Know' Feat. Kimbra
7. fun., 'We Are Young' Feat. Janelle Monae
6. Neon Trees, 'Everybody Talks'
5. Carly Rae Jepsen, 'Call Me Maybe'
4. Pink, 'Blow Me (One Last Kiss)'
3. Ellie Goulding, 'Lights'
2. Maroon 5, 'Payphone'
1. Katy Perry, 'Wide Awake'

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.