Comedian Moon Se Yoon and Weki Meki member Choi Yoo Jung have transformed into lovely, pink twins for their upcoming collaboration single, "Fool"!

The new single will mark comedian Moon Se Yoon's first ever comeback with his singer alter-ego, BOOKKUDDOONG, after his successful debut last year with "Shy" feat. Ravi. BOOKKUDDOONG, who garnered attention during his debut for his adorable image in his pink bob cut and blushed cheeks, has decided to double his cuteness this comeback with the help of the lovely Choi Yoo Jung!

Can you handle the cuteness in BOOKKUDDOONG and Choi Yoo Jung's latest set of teaser images? Stay tuned for the full release of "Fool" feat. Choi Yoo Jung, coming on April 27 at 12 PM KST!