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While fans were probably watching the drama comfortably at home, YoonA and Lee Bum Soo checked out the first broadcast in style as they didn't have time to change before monitoring the drama after filming. Their poker-face smiles make it hard to read what was going through their minds during the live broadcast, but their Behind-the-scenes photos show the fun they had on set which definitely translated over to the screen.

A rep commented, "Not only do Lee Bum Soo and YoonA meticulously monitor the drama immediately after filming, they are known for sharing thoughts with each other on their acting... Thanks to the two actors' excellent teamwork, we think a lot of people are gaining a lot of affection for the Kwon Yool and Nam Da Jung couple starting from the premiere. We ask that you give 'Prime Minister and I' a lot of love."

Did you catch the premiere of 'Prime Minister and I'?