There is more than one artist with this name:
1.) A post-hardcore band from Sonora, California (USA). They released one demo and one full-length, The Magnet, in 2003. They have performed with bands such as Atreyu, Arch Enemy, As I Lay Dying, Sworn Enemy, Himsa, and more.
www.myspace.com/santisonora
2.) Santi White, aka Santigold/Santogold, an alternative rock musician, songwriter and producer from Philadelphia, Pennsylvania (USA).
www.myspace.com/santigold