Britney Spears: It is hard to be motivated to go to the gym

“It”s hard to be motivated to go to the gym”: Britney Spears on her struggle to keep in shape

 

In shape: Britney Spears looked toned and lean while performing in Buenos Aires earlier this week

In shape: Britney Spears looked toned and lean while performing in Buenos Aires earlier this week

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Battle of the bulge: The star was certainly curvier when she began her tour in June

Battle of the bulge: The star was certainly curvier when she began her tour in June