INFINTE's Sunggyu takes a photo with Nell's Kim Jong Wan on 'Yoo Hee Yeol's 'Sketchbook'.

According to Woollim Entertainment on May 13th, Sunggyu participated in the recording of KBS's 'Yoo Hee Yeol's Sketchbook' on the 12th at KBS Annex Hall in Yeoui-do.

The idol received an explosive response from the audience when he stepped on the stage and performed 'Kontrol'. In addition, Nell's Kim Jong Wan also made a surprise appearance on the show as he was the producer for Sunggyu's latest solo album '27', in which he talked about the first time he and Sunggyu met to the production process of the album.

Meanwhile, Sunggyu will start his solo promotion on Mnet's 'M!Countdown' on May 14th.