iTunes:
#3 Canada
#5 United States
#10 New Zealand
#13 Turkey
#14 Australia
#16 Russia
#17 United Kingdom
#21 Austria
#21 South Africa
#24 Denmark
#24 France
#24 Switzerland
#28 Ireland
#29 Germany
#40 Spain
#41 Belgium
#54 Brazil
#65 Japan
#79 Netherlands
#111 Mexico
#148 Italy
Cheap Thrills
iTunes:
#1 Denmark
#2 Ireland
#3 United Kingdom
#3 Germany
#3 Spain
#4 Austria
#4 New Zealand
#5 Norway
#5 Switzerland
#5 Turkey
#9 Australia
#14 Switzerland
#15 France
#15 Spain
#18 Italy
#20 Austria
#20 Canada
#21 Netherlands
#22 Belgium
#24 France
#25 Turkey
#26 Ireland
#26 Mexico
#28 Russia
#30 Denmark
#31 India
#33 Germany
#34 South Africa
#35 Canada
#36 United States
#43 Belgium
#44 Netherlands
#46 Italy
#50 Norway
#50 Russia
#52 Indonesia
#55 New Zealand
#56 United Kingdom
#65 Indonesia
#75 South Africa
#85 India
#95 Australia
iTunes:
#3 Canada
#5 United States
#10 New Zealand
#13 Turkey
#14 Australia
#16 Russia
#17 United Kingdom
#21 Austria
#21 South Africa
#24 Denmark
#24 France
#24 Switzerland
#28 Ireland
#29 Germany
#40 Spain
#41 Belgium
#54 Brazil
#65 Japan
#79 Netherlands
#111 Mexico
#148 Italy
Cheap Thrills
iTunes:
#1 Denmark
#2 Ireland
#3 United Kingdom
#3 Germany
#3 Spain
#4 Austria
#4 New Zealand
#5 Norway
#5 Switzerland
#5 Turkey
#9 Australia
#14 Switzerland
#15 France
#15 Spain
#18 Italy
#20 Austria
#20 Canada
#21 Netherlands
#22 Belgium
#24 France
#25 Turkey
#26 Ireland
#26 Mexico
#28 Russia
#30 Denmark
#31 India
#33 Germany
#34 South Africa
#35 Canada
#36 United States
#43 Belgium
#44 Netherlands
#46 Italy
#50 Norway
#50 Russia
#52 Indonesia
#55 New Zealand
#56 United Kingdom
#65 Indonesia
#75 South Africa
#85 India
#95 Australia
Sia
I believe it's on sale in the US and she performed something on American Idol I think.
29. Try Everything
53. That Don't Sound Like You
62. Dibs
78. S.O.B.
81. Halo
98. Yeah! (feat. Lil Jon & Ludacris)
102. I Got the Boy
109. Car Radio
123. Picture (feat. Sheryl Crow)
125. I Wanna Dance with Somebody (Who Loves Me)
134. Chicken Fried
136. I Write Sins Not Tragedies
137. Sound of Your Heart
151. Time In a Bottle
155. Tell Your Heart to Beat Again
158. Faded
164. Kryptonite
169. All Summer Long
175. Sugar, We're Goin Down
182. Dream On
183. Jessie's Girl
184. Bodies
185. All My Friends (feat. Tinashe & Chance The Rapper)
186. Lips of an Angel
190. Angel
191. Sangria
195. Hollaback Girl
204. California Love
212. House of Gold
216. I Won't Give Up
227. Boyz-n-the-Hood (feat. Ice Cube) [Remix]
Sia, The Weeknd, twenty one pilots, Lionel Ritchie, Future, Simon & Garfunkel, and James Bay are all discounted (those are just the highest-charting albums I noticed). iTunes is having a singer-songwriter sale!
Sia 
