In celebration of his birthday in May, former NU'EST member Aron will hold his first Asia fan meeting tour, 'SPECTRUM OF'. On May 16 KST, the show will open in Tokyo, Japan. On May 20 and 21 KST, he will meet domestic fans in Seoul.

This is the second fan meeting held in Korea following his first solo fan meeting 'Blue Moon, 20 Days'. Aron plans to launch a flare for his solo activities through his Asian tour. 'SPECTRUM OF' contains the meaning of "wanting to show a more colorful image" to repay fans' love. Aron actively came up with ideas regarding the title and is working hard to present the best stage. Recently, on social media, he said, "We are going to show a secret stage as well", raising expectations.

Aron debuted in 2012 as a member of the group NU'EST. Since last year, he has been expanding his field of activity.