4minute snapped a group picture on the set of the upcoming 'Idol Special' episode of MBC's 'Infinity Challenge'.

On April 25th, Sohyun tweeted the above picture and wrote, "4minute came to film for 'Infinity Challenge' kekekeke. Please look forward to our first stage tomorrow kekekeke."

The members seem to be anticipating their promotions for "What's Your Name?" as�well as their guest spot on the popular variety show.

4minute will be guest starring on the episode of 'Infinity Challenge' along with other idols, including SHINee, INFINITE, and After School. It's been reported that the idols will be competing in a strange survival quiz show in which the contestant who gets the most problems wrong will win.

Are you looking forward to the 'Infinity Challenge' idol special?