Nicki Minaj Offers to br Sign 'Megatron Challenge' br Winner to Her Label Minaj recently launched br a contest revolving around br her newest hit song, "Megatron." Fans are encouraged br to either dance or br freestyle rap to br the track. Winners will receive the following: But now, Minaj is also offering br a once-in-a-lifetime opportunity. It seems the 36-year-old rapper, who br got her start with Lil Wayne, is trying br to give back to up-and-coming artists. The "Megatron Challenge" br ends on July 27.