Mario has released�the making-of video for his "MAYDAY" MV!

"MAYDAY" is an international radio distress signal, and in the song, Mario is asking to be saved in the midst of the summer heat.

The track was written by composer�Choi Yong Chan and rookie composer�Seo Yong Bae, who wrote�Ailee's "Heaven", and has been in the works for the past year.

Mario has personally participated in writing the witty lyrics, and with his refreshing vocals, Mario will be captivating the ears of the listeners who are weary from this summer heat.

Check out the making-of below!