Pippa Pipped Over Kylie's Bum? Original Derriere Queen and other Hollywood Great Behinds [PHOTOS]

Kylie best asset, and no we are not talking about her voice, is still very much in prime shape - apparent by the revealing leopard print swimming costume picture she put up on Instagram. The rather youthful 45-year-old seems to be looking a tad longingly at the ocean wearing a nifty leopard print one piece with a tie back. Comments from her fans accentuate the butt craze she sets off even after more than 10 years of those gold hot pants!

Other equally awesome Hollywood butts and their secrets:

Bar Rafaeli

This Israeli beauty's workout routine includes plenty cardio to keep the heart pumping and if you want her bum like hers then it's the martial-art and exercise form of Krav Maga that she attributes to her really toned body. That and a healthy lifestyle!

Beyonce

The secret to Beyonce's bootylicious booty is lots and lots of running. She works out five days a week and does a 100 squats, a 100 step-ups and a 100 walking lunges every day. She also runs for 21/2 miles each day.

Eva Mendes

This hottie was once a couch potato and a junk-food addict. Her perky posterior is all thanks to trainer Joe Dowdell, founder and co-owner of Peak Performance Strength & Conditioning and his specially designed rotational step-up exercise for her!

Hayden Panettiere

She has been showing off her superbly toned body and bum all over the beach recently and it is her 10-minute pilates workout to thank for it. Designed by her trainer Heather Dorak of Pilates Platinum, the workout totally tones the tush amongst other things!

Jessica Biel

She spends about an hour 6 days a week working out in some way since her diet is not something she is extremely strict about - healthy yes, austere no! She does a lot of squats, push-ups, and dumbbells and uses her own body weight to train under Ramona Braganza.

Jessica Alba

Again, it's trainer Ramona Braganza's 3-2-1 workout that has been the go-to method for Jessica Alba's toned body and bum - a set of exercise every day that include three cardio, two circuit and one core segment. The order to follow is cardio 1, circuit 1; cardio 2, circuit 2; and cardio 3, core 1!

JLo

Powerhouse personal trainer Gunnar Peterson attributes JLo's gravity defying glutes to squats and lunges. He also advises to use weights, weights, weights, and weights... and then some weights!