Japan held its annual summer concert in the Ajinomoto Stadium in Tokyo. A-nation, wrapped up this year’s event last Sunday.

Tens of thousands of fans flocked the  two-day event featuring top K-pop acts, including iKON, Red Velvet, Black Pink, NCT 127,  D-Lite (Daesung) of Big Bang and EXO.

S.M Entertainment brought their three K-pop groups — EXO, NCT 127 and Red Velvet –on the stage Saturday, and the three YG Entertainment acts had their performance on Sunday.

Several A-list Japanese artists spotted at the event included Piko-Taro, Ayumi Hamasaki, Daichi Miura and VAMPS.

The A Nation Concert Series was first launched in 2002, and has attracted some 5.6 million fans and followers in its first 15 years,making it one of the biggest music festivals in Japan. Japan’s biggest independent record label, Avex Group, are the organizers.