The "Dinero" singer was dancing around the stage until she mixed up her choreography, ended up missing a few steps, and then hit herself in the forehead causing her to bleed.
During the video J-Lo clearly in pain said, "I hit myself with the microphone. Went like this; boom! I just looked to the side at the wrong time."
"I was bleeding - [it was] coming down my face. Pete came, like a boxer and he just crushed it," she tearfully told fiance Alex Rodriguez in the clip, as she explained how the team tried to quickly stop the swelling with ice.
"And I was like, 'It hurts!' And he was like, 'I gotta do it or else it's gonna blow up.' And he just went down, and he goes, 'You might need stitches.' And I was like, 'No, no, no stitches.'
When A-Rod responds, asking "They said you were good handling it?" J-Lo admitted "No papi, it was dripping."
But her 42-year-old love calmly comforts the superstar, as he plants a kiss on her war wound.
"It was the best show I've seen so far. You guys killed it! And you showed why you're a champion baby. You were down and you still came back up and had the best show," he assured her.
"You don't see how great you are. You really have no idea. Baby, nobody's looking at steps," the former MLB athlete told his soon-to-be wife. "People are looking at how beautiful you look and how great you sound."
The "Medicine" songstress gushed over her fiancé's comments, but that didn't stop her from having her doubts about the performance which she just wasn't "happy with herself."
Nevertheless she was beaming with awe as she told her manager Benny Medina: "Alex said it was the best show he'd ever seen. That's why I love him and I'm gonna marry him."
It won't be long until those wedding bells will be ringing for the happy couple, as they got engaged back in February. The star shared that they will definitely be getting married concluding the video saying, "Whether he wants to or not, we're getting married. We're getting married forever."