Andrew Luis "Dru" Castro is a 5x Grammy Award-winning recording engineer, producer and songwriter in Atlanta, Georgia.

In 2009 Castro produced, engineered and wrote all the songs with India.Arie on her with the 3X Grammy (1X winning) nominated album Testimony: Vol.

Tricky Stewart, Bryan Michael Cox, Anthony Dent, Polow Da Don, and Sean Garrett were among the first to offer Castro a break into the recording business.

Castro has recorded, amongst others, Usher, Keyshia Cole, Ciara, T-Pain, Jamie Foxx, India.Arie, Trina, Raven-Symoné, Joe, Kelly Rowland, Stacie Orrico, and Keri Hilson.

Many artists including Usher, Ciara, Brandi, India.Arie, Keyshia cole, Yo Gotti, Lacrea, Rico Love, New Kids on the Block and Nelly had worked at the state of the art recording facility in North Atlanta.