Super Junior's Shindong revealed a tiny bit of BTOB's choreography for their 'Catch Me' comeback, but that wasn't the end of their connection.

Shortly after his radio show, 'ShimShimTapa', with BTOB, Shindong tweeted another photo with the message, "What a coincidence!!! As soon as I tweeted the [previous] photo, BTOB came up behind me at the movie theater! Meeting keke. I wish the polite rascals of BTOB the best of luck!" 

In other news, BTOB have been promoting their latest single "When I Was Your Man" on various radio programs, such as SBS PowerFM's 'Boom's Young Street', KBS 2FM's 'Super Junior's Kiss the Radio', and MBC Radio's 'ShimShimTapa'.