Comedian Moon Se Yoon has summoned his singer alter-ego once again for his 2nd single, "Fool"!

Moon Se Yoon, who debuted as the solo singer BOOKKUDDOONG in August of last year, will be enlisting the help of a special featuring artist for his first comeback single - Weki Meki's Choi Yoo Jung! During his debut with "Shy" last year, BOOKKUDDOONG worked with his '1 Night, 2 Days' co-star Ravi, entering various domestic music charts with his fun, addicting track. Now, the singer plans on showcasing his chemistry with his first female artist collaboration for his comeback. 

Meanwhile, BOOKKUDDOONG's 2nd single "Fool", produced under Ravi's label The L1VE, will be out on April 27 at 12 PM KST. Check out the singer's latest set of teaser images, below!