After Pitbull taped a performance on “Late Night With Jimmy Fallon,” he gave diners at Victor’s an impromptu performance with their mojitos and ceviche Tuesday night. Pitbull, who recently released his new album, “Global Warming,” arrived at the Theater District Cuban restaurant with a crew of 20, but he declined to sit in the private dining space. Instead, his entourage took over the bar area and sang and danced to Victor’s Cuban-trio band. The Miami-born rapper encouraged guests to dance, too, and diners followed suit until well after 1 a.m. “He was super friendly with everyone and was even helping pass out mojitos to guests,” a spy told us.