Here's a look at which tracks are making the biggest waves on the charts around the world this week.
Australia
Scarlett Belle - "Freak Tonight"
Austria
Katy Perry - "Teenage Dream"
Portugal
Lady Gaga - "Alejandro"
Denmark
Robyn - "Hang With Me"
United States
Rihanna - "Only Girl (In The World)"
Canada
Michael Bublé - "Hollywood"
Spain
Malú - "Blanco y Negro"
Ireland
Maroon 5 - "Misery"
New Zealand
Tinie Tempah feat. Eric Turner - "Written In The Stars"
United Kingdom
Alexandra Burke feat. Laza Morgan - "Start Without You"
