#20. Rihanna - "Where Have You Been"

(Photo by Samir Hussein/Getty Images)

#19. Justin Bieber - "Boyfriend"

(Photo by Kevin Winter/Getty Images)

#18. Rihanna - "We Found Love" featuring Calvin Harris

(Photo credit ROBYN BECK/AFP/GettyImages)

#17. LMFAO - "Sexy and I Know It"

(Photo credit ADE JOHNSON/AFP/Getty Images)

#16. Flo Rida - "Good Feeling"

(Photo by Ryan Pierse/Getty Images)

#15. Calvin Harris - "Let's Go" featuring Ne-Yo

(Photo by Tim Whitby/Getty Images)

#14. Pitbull - "Back in Time"

(Photo by Kevin Winter/Getty Images)

#13. Katy Perry - "Part of Me"

(Photo by Jason Merritt/Getty Images)

#12. Carly Rae Jepsen - "Call Me Maybe"

(Photo by Kevin Winter/Getty Images)

#11. Wiz Khalifa & Snoop Dogg - "Call Me Maybe"

(Photo by Kevin Winter/Getty Images)

#10. Calvin Harris - "Feel So Close"

(Photo by Mark Davis/Getty Images for Coachella)

#9. Nicki Minaj - "Starships"

Kevin Winter/Getty Images

#8. Drake - "The Motto" featuring Lil Wayne

Kevin Winter/Getty Images

#7. Maroon 5 - "Payphone" featuring Wiz Khalifa

(Photo by Kevin Winter/Getty Images)

#6. Drake - "Take Care" featuring Rihanna

(Photo by Kevin Winter/Getty Images)

#5. One Direction - "What Makes You Beautiful"

(Photo Marty Melville/AFP/Getty Images)

#4. The Wanted - "Glad You Came"

(Photo by Kevin Winter/Getty Images)

#3. Flo Rida - "Wild Ones" featuirng Sia

(Photo by Jason Kempin/Getty Images for You Tube)

#2. fun. - "We Are Young" featuring Janelle Monae

(Photo by Charles Eshelman/Getty Images for Spotify)

#1. Gotye - "Somebody That I Used To Know"

(Photo by Michael Buckner/Getty Images for Coachella)