Mary Mary is an American urban contemporary gospel duo composed of sisters Erica Atkins-Campbell and Trecina Atkins-Campbell. Formed in 1998, Mary Mary was launched into mainstream recognition following the release of their best-selling debut album, Thankful (2000), which contained the hit single "Shackles ". Their followup album Incredible (2002), reached number one on the Top Gospel Albums chart. Their self-titled third album, Mary Mary (2005), which contains themes the public interpreted as a channel to the group's experience,. That album also contains the worldwide hits "Heaven", "The Real Party", and "Yesterday".

Trecina Evette "Tina" Campbell is an American urban contemporary gospel, Christian R&B and contemporary R&B recording artist and musician. She started her music career in 1998 with her older sister, Erica Campbell, as part of the gospel music group, Mary Mary. Her solo music career began in 2014, and has since released one studio album with Gee Tree Creative, where it charted on the Billboard magazine chart. She released her second studio album, It's Still Personal on September 29, 2017.