ZE:A's Siwan recently updated fans with a hilarious selca of himself falling asleep after another day of his jam-packed schedule.

Siwan simply wrote on his Twitter on the 7th, "Goodnight," along with the photo above.

The photo shows Siwan falling into a deep sleep with his mouth partially open. Apparently, he was too tired to take off his suit beforehand, leaving fans to suspect that he is suffering from a lack of proper sleep due to his busy schedule.

Netizens commented, "It seems he's practicing hard for his musical", "Siwan hwaiting", and more.

Siwan will make his musical debut through 'Joseph and The Amazing Technicolor Dreamcoat' on February 12th KST at Charlotte Theater in Seoul.