Though some women may be sensitive about their backside ("Does my butt look big in this?"), many others wish they could actually increase the size of their booty. Dr. Anthony Griffin, a Beverly Hills plastic surgeon known as the "butt doctor," explains why. "A lot of celebrities are trending toward a bigger but now because of J-Lo, Beyoncé," he says. "It's OK to have curves." So what are celebrities doing to achieve a bigger posterior? "I do a procedure called the Brazilian butt lift," Dr. Griffin says, "where we take people who have a flat butt and take fat from the tummy, around the lower back and add it to the buttocks to give those sort of curves that you see on the beaches of Brazil." If you are looking for a non-surgical way to emphasize your butt (or don't want to spend around $20,000 for the Brazilian butt lift), Dr. Griffin says that toning your butt will make it stand out more. Watch the video above to see him show Rachael the moves that could have people noticing your bum!