Kim Kardashian Kris Humphries nba big butt reality tv

Kim and Kris are gearing up to tie the knot on August 20, so the pair has been working overtime on their fitness! The adorable soon-to-be-newlyweds headed to Barry's Bootcamp in West Hollywood because they both want to look perfect for their upcoming lavish (and televised!) nuptials, which will take place in Montecito, California.

Barry designed his "no excuses" fast, effective workout program over a decade ago, and it's become a staple for Hollywood stars who want to shed weight ASAP.

It looks like Kim and Kris really worked up a sweat!

In case you haven't seen their gorgeous wedding invitation ... feast your eyes on the work of art after the jump.