Nicki Minaj may be a lot of things, but shy isn't one of them. The 'I Am Your Leader' MC showed her stuff on her new Instagram account -- and boy, did she show a lot of her stuff.

The former 'American Idol' judge posed in a thong on her photo sharing account (hot pink, naturally) on July 18. But she didn't stop at still images for her "Thong Thursday," which she also dubbed "Twerk That A-- Thursday." She also posted a video of herself twerking in a swimming pool ... and unlike her fellow blonde Miley Cyrus, she actually can twerk her ample butt off.

Take in her hot booty below and above!