08/18/2011 10:59 am ET Updated Dec 06, 2017

Kim Kardashian's Wedding Workout (VIDEO)

Perhaps you heard that reality TV star Kim Kardashian is getting married this weekend? No doubt you also heard that Kim has been hitting the gym hard to look perfect on her fairytale wedding day.

Kim's been kicking her famous butt into high gear and has been tweeting up a storm about her sessions with personal trainer Gunnar Peterson.

All weekend Kim's been tweeting:

"Had a great @Gunnar workout early this morning! I don't know what I would do without him!"

"Such a great workout w @Gunnar! Gunnar has me on the grind!!!!"

"I really put in extra work today at bootcamp! Feels so good to push yourself a little more than usual!"

But what exactly has Kim been doing to get her booty as tight as possible for the big day?

Kim's trainer Gunnar Peterson, who been working with the bride-to-be for the last three years, told Shape, that he's been working out with Kim three to five days per week, depending on her hectic schedule.

Kim is in the gym all year long and not just for special occasions. But since she wants to look amazing when her wedding airs on TV for the entire world to see in October they've reved up her routines, making them just a little quicker paced.

To learn Kim's entire wedding workout click over to Shape.