Nicki Minaj teased her fans with a twerk video and possibly a song from her upcoming "Pinkprint" album, all rolled into one sexy Instagram video. After the YMCMB star had the Internet going nuts, she claimed that the girl in the video was a friend, not her. The teaser comes right on the heels of her latest release, "Chi-Raq," featuring Lil Herb, in which she addresses Malcolm X's daughter's co