GOYANG, Gyeonggi Province — Eight years and eight months away, and two missing founding members, counted for little at Goyang Stadium on Sunday. One of K-pop's most long-standing, iconic boy bands, BIGBANG packed more than 30 songs into two and a half hours. Roughly 40,000 fans answered with a roar loud enough to leave ears ringing. The three-night run, titled "XX : COSMOS," was the group's first concert in Korea since "LAST DANCE" at Seoul's Gocheok Sky Dome in December 2017. It marked BIGBANG's 20th debut anniversary and the opening leg of its first full world tour as the trio of G-Dragon, Taeyang and Daesung. Fans of all ages from around the globe filled the complex well before Sunday's 7 p.m. start. Daehwa Station on Seoul Metro Line 3, the nearest station to the venue, was already crowded, the late-summer heat matching the mood outside the gates. Just minutes after 7 p.m., the three appeared to the sounds of their 2012 song "Fantastic Baby." Following an intro video built around the latest album's cosmic motif, a screen washed in red split slowly down the middle and the members ap