Krystal Davis
Krystal L. Davis, or simply Krystal Davis, is an American session musician and background singer for Herbie Mann, Evelyn King and Cyndi Lauper.
Her single "So Smooth"  was released in 1985 and peaked at number nine on the Billboard Hot Dance Singles Sales chart, staying there for 12 weeks.

Biography
Her musical career began with the 1977 production titled The Atlantic Family Live at Montreux. 
She afterwards provided vocals for various jazz and disco musicians such as Dazzle, Maynard Ferguson, Herbie Mann or Inner Life and throughout the 1980s, Cyndi Lauper, Change and Melba Moore.
In 1988 she co-wrote a song with Luther Vandross called "So Much Better Now" for Gregory Hines.
Together with New York City-based R&B band called Blyss she recorded "No Turning Back". Although not charted, it was picked by Billboard as a "recommended" piece of urban music.Davis also had a minor role in the Matty Rich movie Straight Out of Brooklyn.

Chart performance
Discography
Particular singles
"So Smooth"

References
External links
Krystal Davis – Credits at Discogs.