Who knows what Pippa Middleton's New Year's resolution could be, because she's already nailed getting back in shape after just giving birth!
The 35-year-old new mama was seen in St. Barts for the holiday with husband James Matthews. 10-weeks ago, Middleton gave birth to Arthur Michael William, and already looks amazing while rocking a white two-piece bikini with black stitching.
The first-time parents have remained largely out of the public's eye, except for attending a Christmas carol service in December.
It's apparent during all that private time, Pippa's been pumping iron.