Follow Me;br Youtube : dailymotion : Pinterest : Twitter : Facebook : br "Peek-a-Boo" (Korean: 피카부; RR: Pikabu) is a Korean song recorded by South Korean girl group Red Velvet for their second studio album, Perfect Velvet (2017). Described as an up-tempo pop dance song with trop house elements, the song was written by Kenzie and was produced by Moonshine, Ellen Berg Tollbom and Swedish singer-songwriter Cazzi Opeia. It was released on November 17, 2017 as the lead single of Perfect Velvet.