# 10 Adele - Rumour Has It

British singer-songwriter Adele performs on stage at the BRIT Awards 2012 in London on February 21, 2012. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/Getty Images)

#9 Carly Rae Jepsen - Call Me Maybe

LAS VEGAS, NV - MAY 20: Performer Carly Rae Jepsen poses in the press room at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

#8 One Direction - What Makes You Beautiful

NEW YORK, NY - MAY 26: (L-R) Louis Tomlinson, Harry Styles, Liam Payne, Zayn Malik and Niall Horan of British boy band One Direction perform live on stage at the Beacon Theatre on May 26, 2012 in New York City. (Photo by Neilson Barnard/Getty Images)

#7 Train - Drive By

LAS VEGAS, NV - OCTOBER 29: Train singer Pat Monahan performs at the Andre Agassi Foundation for Education's 16th Grand Slam for Children benefit concert at the Wynn Las Vegas October 29, 2011 in Las Vegas, Nevada. The event raises funds to help improve education for underserved youth in the Las Vegas community. (Photo by Ethan Miller/Getty Images)

#6 The Wanted - Glad You Came

NEW YORK, NY - APRIL 25: (L-R) Siva Kaneswaran, Jay McGuiness, Max George, Tom Parker and Nathan Sykes of The Wanted visit "fuse Live" at fuse Studios on April 25, 2012 in New York City. (Photo by Neilson Barnard/Getty Images)

#5 Jason Mraz - I Won't Give Up

NEW YORK, NY - APRIL 26: Singer/songwriter Jason Mraz visits fuse's "Top 20" at fuse Studios on April 26, 2012 in New York City. (Photo by Charles Eshelman/Getty Images)

#4 Maroon 5 - Payphone ft. Wiz Khalifa

BALTIMORE, MD - MAY 19: Performing artist Wiz Khalifa (R) sings a song with Maroon 5 lead vocalist and guitarist Adam Levine prior to the 137th running of the Preakness Stakes at Pimlico Race Course on May 19, 2012 in Baltimore, Maryland. (Photo by Patrick Smith/Getty Images)

#3 Gotye - Somebody That I Used To Know

INDIO, CA - APRIL 15: Musician Wouter "Wally" De Backer aka Gotye performs during Day 3 of the 2012 Coachella Valley Music & Arts Festival held at the Empire Polo Club on April 15, 2012 in Indio, California. (Photo by Michael Buckner/Getty Images for Coachella)

#10 Kelly Clarkson - Dark Side

Photo by Michael Loccisano/Getty Images

NEW YORK, NY - MAY 15: Singer Kelly Clarkson attends the Entertainment Weekly & ABC-TV Up Front VIP Party at Dream Downtown on May 15, 2012 in New York City. (Photo by Michael Loccisano/Getty Images)

#1 fun. - We Are Young ft. Janelle Monae

UNIVERSAL CITY, CA - JUNE 03: Singer Nate Ruess of Fun. performs onstage during the 2012 MTV Movie Awards held at Gibson Amphitheatre on June 3, 2012 in Universal City, California. (Photo by Kevin Winter/Getty Images)