Park Bo-ram made her debut with release digital single "Beautiful" featuring the leader of what boy group?
Zico (rapper) Woo Ji-ho (Korean: 우지호; born September 14, 1992), widely known by his stage name, Zico (Korean: ), is a South Korean rapper, producer, singer-songwriter and leader of the boy group Block B, signed under the label Seven Seasons. He has released two solo albums, "Gallery" (2015) and "Television" (2017).
Baro (singer) Cha Sun-woo (born September 5, 1992), better known by his stage name Baro, is a South Korean singer, rapper, and actor. He is the main rapper of South Korean boy group B1A4 and debuted alongside with the group on the stage of MBC "Show! Music Core" on April 23, 2011. He made his acting debut through the hit 2013 cable drama "Reply 1994" and additionally received critical acclaim for his role in the 2014 drama "God's Gift - 14 Days". Baro won 12 medals in Idol Star Athletics Championships with 3 golds, 7 silvers and 2 bronzes.