She has been working out at Barry’s Boot Camp here, reports showbizspy.com.
“Katie has been going to Barry’s Boot Camp in New York City and she’s working really hard,” said a source, who has seen her sweating it out at the gym.
The 33-year-old mother of Suri Cruise hit the full body class recently, and she has been working out there frequently since her split.
“She looked great, well rested and seemed happy. She was dressed down and looked casual and comfy. Her hair was wavy and natural.
“During class, Katie was holding her own on the treadmill and was a fast sprinter! She was super friendly with the other girls next to her. One mentioned how she is the coolest, most down-to-earth celebrity she has ever met,” said the source.