Lunatic was formed by Ball and Au, two friends from Bansomdejchaopraya Rajabhat University, who had dreams of creating a hit single. The two recruited the rest of the band out of musicians who shared their dream and musical direction. With the addition of three more musicians, the five-piece group was set. Since then, they have participated in musical competitions for years. The membership of the band changed over the years and today Ball and Au are joined by Philt, Ta, and Ton.

Lunatic participated in the 2010 Coke Music Awards but, unfortunately, did not make it past the first round. The band didn't give up after that performance and, thanks to their passion, hard work and positive attitude, they returned to the Coke Music Awards in 2013 with an energetic performance that led to them winning the contest.

The band has released videos of both original songs and covers that are posted on VDO and YouTube. Many have been viewed over 150,000 times. Their audience on social networks continues to grow. The members of Lunatic have come a long way from university students to emerging teenage band.