20. Jason Mraz - "I'm Yours"
Courtesy Atlantic Records
Fans of Jack Johnson and Colbie Caillat may have found a new favorite. It took awhile for this song to rise up the charts, but once it began its ascent, it could not be stopped. The feel-good sound swept countless pop fans up in its wake. Jason Mraz has taken a leap into the elite group of today's top pop stars.
19. Jonas Brothers - "Lovebug"
Courtesy Hollywood Records
The Jonas Brothers want nothing more than to make you smile here. "Lovebug" is pure charm sounding like the guys next door improvising on your front porch steps.
18. Chris Brown - "Forever"
Courtesy Jive Records
Take a slice of trance dance music and weave Chris Brown's sweet, soulful vocals over the top. The result is a huge smash hit single that goes down so gloriously easy.
17. Lupe Fiasco featuring Matthew Santos - "Superstar"
Courtesy Atlantic Records
If you wanted to know what Coldplay would sound like if they hooked up with a rapper, "Superstar" gives you a good idea.
16. Katy Perry - "Hot 'n Cold"
Courtesy Capitol Records
Katy Perry shows off both her edgy humor and her 80's musical roots here. "Hot 'n Cold" is a well-deserved second chart-topping hit.
15. Madonna featuring Justin Timberlake - "4 Minutes"
Courtesy Warner Brothers
Madonna borrowed the talents of Justin Timberlake and Timbaland to prove to American pop fans she still knew how to connect with them. Those horns are among the most memorable sounds of the year.
14. The Ting Tings - "Shut Up and Let Me Go"
Photo by Chris Jackson / Getty Images
An Apple iPod commercial first introduced American pop audiences to the Ting Tings. However, the pair's instincts for a punky pop melody are likely to maintain the attention of music fans.
13. Ne-Yo - "Closer"
Courtesy Def Jam
With hints of an Off the Wall era Michael Jackson obsession, Ne-Yo proved he saved some of his best songs for himself.
12. T.I. featuring Rihanna - "Live Your Life"
Courtesy Atlantic Records
Who would have guessed sounds borrowed from a Moldovan pop song would top the US pop singles chart? Sometimes truth is stranger than fiction.
11. The Killers - "Human"
Courtesy Island Records
Dr. Hunter S. Thompson is the unlikely subject of the Killers' latest anthemic pop hit. You won't be able to get the chorus out of your head.
