Mary Mary

Mary Mary is an American contemporary gospel duo, consisting of sisters Erica Atkins-Campbell (born (1972-04-29)April 29, 1972) and Trecina "Tina" Atkins-Campbell (born (1974-05-01)May 1, 1974). 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. The group's name, as stated in an interview is inspired by the two famous Mary's from the Bible; Mary, the mother of Jesus Christ, and Mary Magdalene.

source: Wikipedia