That was my first thought Butch Vig the sound behind Nirvana!
Well my second choice would be these guys: Jimmy Jams and Terry Reed!
They worked all these artist-TLC, The Sounds of Blackness, Yolanda Adams, Jordan Knight, Michael Jackson, Boyz II Men, Usher, Mary J. Blige, Mariah Carey, Prince, Spice Girls, Vanessa Williams, George Michael, Melanie B, Rod Stewart, Kelly Price, Gwen Stefani, New Edition, Eric Benet, Pia Zadora, Solo, Morrison Slick, Human League.
They had the 80's R&B sound down to a science.