Minhyuk's bright red panties were exposed for all the world to see during BTOB's performance recently.

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The group was dancing on the stage of 'M! Countdown' when a part of choreography came up where they had to spread their legs wide. Maybe Minhyuk's pants were too tight on him that day, maybe luck wasn't on his side, maybe his pants were rebelling against him, whoever really knows. 

But someone in the audience was sneaky enough to capture a photo of Minhyuk in his red panties after his pants ripped. Someone even took the time to freeze the glorious moment and blow up the picture so that we get a close-up of the singer's private area...thanks a lot. 

Minhyuk hilariously relayed his embarrassing moment on Twitter, which went, "We made a song called 'Open'..." and "I'm #Okay. Everybody please give a lot of love for #open. #turningdangerintoopprtunity." 

You can see the moment at 2:30 above.

Open?? ?? ?????...

� ??? (@btob2mh)

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? #????............ ??? #open ?? ??????

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