There's a good chance you weren't one of the lucky few to see Mariah Carey perform at New York's Club Tatou back in 1990 when the new kid on the block wowed the crowd. And even though time has no meaning in MC world, the singer is celebrating three decades of hit-making this year under the #MC30 tag, beginning with a new EP dedicated to one of her very first live performances from that night. "We don't acknowledge