Bolbbalgan4's 2018 Concert History
Bolbbalgan4 (also 볼빨간사춘기, BOL4) is an indie female duo (Ahn Ji Young & Woo Ji Yoon) formed by Shofar Music. They participated on Superstar K 6 in 2014 and signed a contract with their current company, but didn't make their debut until 2016. They officially debuted with the mini album RED ICKLE on April 22, 2016.
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