Mary Mary is a three time Grammy-award winning American gospel music duo, consisting of sisters Erica Atkins-Campbell (born April 29, 1972(1972-04-29)) and Tina Atkins-Campbell (born May 1, 1974(1974-05-01)). The duo are often credited along with Kirk Franklin for broadening the fan base of urban contemporary gospel in the 2000s by introducing elements of soul music, hip hop, funk and jazz. Mary Mary broke onto the music scene with their popular song "Shackles (Praise You)" which is considered one of the pioneering songs of urban contemporary gospel music .
Their debut album Thankful (2000) was certified Platinum. The duo has released three Gold albums: Incredible (2002), and Mary Mary (2005), which all charted No. 1 on the Billboard Top Gospel Albums.
The sisters were born Erica Atkins and Trecina Atkins. The Campbell (formerly Atkins) sisters grew up as part of a large family of nine children in Inglewood, California. Their parents are Thomasina, an evangelist and choir director at the Evangelistic Church of God in Christ, and Eddie, a youth minister.