Sunmi and BE'O announce collaboration for a new single, "Lights Out."
#SUNMI #BEO Sunmi and BE'O are teaming up to release a new track! Read on to know further details about the singer and rapper's forthcoming collaboration! Sunmi - BE'O Collab: Singer, Rapper To Release New Single On March 15, Billion Music confirmed that Sunmi and BE'O are collaborating for a new track, slated for release this month! Titled "Lights Out," the single is a retro funk track co-produced by EL CAPITXN and VENDORS, who both worked on songs for some of the biggest K-pop stars.