The world's biggest K-pop festival marked its 21st year in 2015, with groups such as EXO, 4Minute and SHINee electrifying the Seoul World Cup Stadium.
![SHINee WORLD VI [PERFECT ILLUMINATION] JAPAN FINAL LIVE in TOKYO DOME](https://image.tmdb.org/t/p/w500/3y2bKaGZjSM1CUb4gtoRYYBdeoS.jpg)
