Jordan Moreau Just a few days after literally breaking the floor at a Detroit concert, Grammy-nominated rapper Baby Keem stormed the stage at New York City’s Terminal 5 to a packed crowd of young fans, dazzling them with a laser-light show and hits from his debut studio album “The Melodic Blue.”Keem, the cousin of 13-time Grammy winner and Pulitzer Prize-winning artist Kendrick Lamar, could nab himself a Grammy or three this year, alongside his famous family member. The 21-year-old is up for best new artist, and his single “Family Ties,” featuring Lamar, is nominated for best rap song and rap performance.