Curious how Jennifer Lopez’s birthday surprise turned into an unexpected viral moment during her Warsaw concert? A sudden wardrobe mishap left the global superstar in her underwear on stage, but she handled it with humor and confidence in front of thousands.

Jennifer Lopez's fans have praised the singer for the way she handled a potentially awkward wardrobe malfunction. The 'Get Right' hitmaker, 56, has been on her 'Up All Night' tour where she debuted new tracks like 'Wreckage of You' and 'Up All Night'.