STUNT: Jennifer Lopez's Onstage Breakdown At Mohegan Sun!

It was megacasino Mohegan Sun's 15th anniversary gala. J-Lo headlined. According to The Daily Mail: She's maintained a dignified poise ever since her break-up with husband Mark Anthony, but tonight Jennifer Lopez broke down in front of a packed auditorium as she sang about love. 

The 42-year-old was shimmering through her headline performance at the Mohegan Sun Arena's 15th anniversary celebration when she started sobbing and had to leave the stage.

Jennifer had just performed a raw, unembellished rendition of 'If You Had My Love' when she told the audience that the 1999 track was 'the first song I wrote about love.'