Here a look at what's at the top of the airwaves around the world. For the week of May 1, 2011.
DENMARK
#5. "S&M" by Rihanna
#4. "Min Øjesten" by Sarah
#3. "Mod Solnedgangen" by Nik & Jay
#2. "Party Rock Anthem" by IMFAO
#1. "Min Klub Først" by Rosa Lux feat. Alberte & Josefine Winding
UNITED STATES
#5. "Down On Me" by Jeremih & 50 Cent
#4. "S&M" by Rihanna
#3. "Just Can't Get Enough" by Black Eyed Peas
#2. "Rolling In The Deep" by Adele
#1. "E.T." by Katy Perry feat. Kanye West
UNITED KINGDOM
#5. "Sweat (David Guetta Remix)"by Snoop Dogg
#4. "Beautiful People" by Chris Brown feat. Benny Benassi
#3. "On The Floor" by Jennifer Lopez feat. Pitbull
#2. "The Lazy Song" by Bruno Mars
#1. "Party Rock Anthem" by LMFAO
CANADA
#5. "S&M" by Rihanna
#4. "Price Tag" by Jessie J feat. B.o.B.
#3. "Rolling In The Deep" by Adele
#2. "On The Floor" by Jennifer Lopez feat. Pitbull
#1. "E.T." by Katy Perry feat. Kanye West
HUNGARY
#5. "Grenade" by Bruno Mars
#4. "F**kin' Perfect" by P!nk
#3. "Just The Way You Are" by Bruno Mars
#2. "Born This Way" by Lady Gaga
#1. "Price Tag" by Jessie J. feat. B.o.B.
Most songs available @ iTunes.