Late last year, the first member of the most successful and famous boy band on the planet – BTS – began military service. Singer and songwriter, Kim Seok-jin (popularly known as Jin), 30, began five weeks of compulsory military training in South Korea by posting a selfie of his new “buzz cut” hairstyle. There had been speculation this call-up was on the horizon and that upcoming military service for several members of BTS was the real reason for the band’s break-up which had been announced during the summer. Jin’s service has sparked a debate in South Korea about exemptions for…