Ever since siblings Erica Campbell and Tina Campbell broke through in 2000 with the pioneering crossover hit “Shackles (Praise You),” the chart-topping sister act has never wavered from defying convention to fulfill its mission: sending uplifting messages through music and words that are relatable to everyone.

Behind the music, talents and success, Mary Mary faces the same struggles as anyone else would and they are not afraid to show their weaknesses through their reality TV series.