Wedding Love Song - R&B Line Dance?

I was at a wedding in Detroit this weekend and they did a line dance to an R&B love song. The voice of the artist sounded like Mary J. Blige, but for the life of me, I cannot find the song. It is a new song (released maybe 2010/2011). Does anyone know what the song might be? It is not a Cupid Shuffle or Cha Cha slide song at all! TIA!