Aiming to become the 'Best of Best Boys', rookie boy group BB.BOYS have made their debut on today's episode of MBC's 'Music Core'! Their title track, "We Will Be Okay", is the work of composer Oh Se Hoon, who's created a slew of hit tracks for Namolla Family like "Only You", "Is Love That Easy", and "Don't Call Me". The addictive track features lyrics about one's devotion to their lover, and has guest vocals from G.NA. Since BB. BOYS already gained recognition for their unrookie-like vocal talents, many are looking forward to seeing what the boys will offer on stage. Check out their debut featuring Park Sang Eun below! Source: Daum Music