List of best-selling singles
6–6.99 million copies

Artist
Single
Released
Sales (in millions)
Source
Maroon 5
"One More Night"
2012
6.9
-
Usher featuring will.i.am
"OMG"
2010
6.9
-
Katy Perry
"California Gurls"
2010
6.7
-
Flo Rida
"Whistle"
2012
6.6
-
Train
"Hey, Soul Sister"
2009
6.6
-
Rihanna featuring Jay Z
"Umbrella"
2007
6.6
-
Taylor Swift
"Love Story"
2009
6.5
-
Flo Rida featuring Sia
"Wild Ones"
2012
6.5
-
Bruno Mars
"The Lazy Song"
2011
6.5
-
Shōnan no Kaze
"Junrenka"
2006
6.5
-
Justin Bieber featuring Ludacris
"Baby"
2010
6.4
-
Timbaland
"Apologize"
2008
6.2
-
Paramore
"crushcrushcrush"
2007
6.1
-
Beyoncé
"Single Ladies (Put a Ring on It)"
2008
6.1
-
A Great Big World and Christina Aguilera
"Say Something"
2013
6
-
Clean Bandit featuring Jess Glynne
"Rather Be"
2014
6
-
Kimura Kaela
"Butterfly"
2009
6
-
The Pussycat Dolls featuring Busta Rhymes
"Don't Cha"
2005
6
-

Question: Which best selling singles sold 6.6 million copies?
Answer: Umbrella, Whistle, and Hey, Soul Sister have each sold 6.6 million copies, making them some of the best selling singles.