TVXQ's Changmin exposed his sexy abs on MBC's 'I Live Alone.'

On February 1, the idol star appeared on the popular variety show for the second time. His footage started off with him waking up in his bed. Changmin, who went to bed shirtless, wowed everyone with his ripped abs. 

The 'I Live Alone' members expressed amazement at how Changmin is able to maintain a hot figure despite having a big appetite. 

Check out the scene from ' I Live Alone' in the clip above.