Two of pop's most successful female artists join the rankings this week!

Following her opening performance at the 2013 MTV VMAs, Lady Gaga's 'Applause' joins the Top 20 list. Mother Monster is joined by another superstar, Taylor Swift, whose collaboration with Ed Sheeran debuted on this week's list.

Check out what else is in store for this weekend’s Top 20 countdown below, and be sure to click through to see a complete list of radio stations where you can tune in.

Top 20 Songs: Week of August 26 – September 1, 2013

20. Taylor Swift, 'Everything Has Changed' Feat. Ed Sheeran
19. Enrique Iglesias, 'Turn the Night Up'
18. Avicii, 'Wake Me Up'
17. One Direction, 'Best Song Ever'
16. Lady Gaga, 'Applause'
15. Justin Timberlake, 'Take Back the Night'
14. Daft Punk, 'Get Lucky'
13. Jason DeRulo, 'The Other Side'
12. Katy Perry, 'ROAR'
11. Lana Del Rey, 'Summertime Sadness'
10. Miley Cyrus, 'We Can't Stop'
9. Bruno Mars, 'Treasue'
8. Anna Kendrick, 'Cups'
7. Macklemore & Ryan Lewis, 'Same Love'
6. Capital Cities, 'Safe and Sound'
5. Calvin Harris, 'I Need Your Love' Feat. Ellie Goulding
4. Imagine Dragons, 'Radioactive'
3. Zedd, 'Clarity' Feat. Foxes
2. Maroon 5, 'Love Somebody'
1. Robin Thicke, 'Blurred Lines'

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.