Singer Tony transformed into a cute pre-school student.

'On May 25, Tony posted on his Twitter "Thank you everyone who was with me today. I worked really hard so I'm a little sad. But I will work harder!" along with a photo.

In the photo Tony is wearing a bright yellow school boy outfit with his cheeks blushed in pink. He really looks like a pre-school student in the photo.

This was the outfit Tony wore on the 25th broadcast of MBC 'Dancing with the Stars 2.’

Those who saw the photo commented "I laughed so hard, so cute", "He really looks like a pre-school student", and "ah he is the cutest thing.”

Photo: Tony Twitter