Today, Nicki Minaj released a new music video for "I Am Your Leader," and predictably, she shakes her ass in it. A lot. These gyrations have become the running theme of Nicki's videos, and whether you love the songs that accompany them or not, it's always a pleasure to watch her on-screen. Outside of videos, she employs the same tactics on tour. Thankfully, there's always a camera phone around to capture her on-stage antics, too. You'll find all of Nicki's best bootylicious moments in the following gallery of her 25 sexiest butt-shaking GIFs. Enjoy.