Boxers Floyd Mayweather, Jr. and his recent opponent Manny Pacquiao, have taken the top two spots on the new list thanks to the $300 million (GBP200 million) and $160 million (GBP106 million) they respectively earned for their May (15) fight night in Las Vegas, and Roar hitmaker Perry comes in at number three with a $135 million (GBP84.375 million) windfall.

Boy band One Direction and U.S. shock jock Howard Stern close out the top five, while Iron Man star Robert Downey, Jr., Swift and country star Garth Brooks are also included in the top 10.

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