Singer Haha posted a picture of the lunch box he received from Kim Jong Kook's fans.

On May 19th, Haha posted on his twitter, "A lunch box of love I received from Jong Kook's fans on the day of Sketchbook filming! Thank you, I ate well" along with a picture.

In the picture, Haha is holding up the lunch box with Kim Jong Kook and smiling widely.

Haha continued, "But I got so excited I forgot all the lyrics so I messed up Turbo's song. Sorry. I got so heated up I broke out in tongue..."

In the KBS 'Yoo Hee Yul's Sketchbook' aired on May 18, Haha performed Turbo's hit songs 'Reminiscence' and 'Black Cat Nero' with Kim Jong Kook.

Fans that saw the photo commented, "Kim Jong Kook's fans are crazy", "Kim Jong Kook and Haha look like brothers", and "They look so cute.”

Photo: Haha Twitter