현대카드
Members says the band's name came from they were thinking Asia and that is where 'Eastern' came from, They added 'Sidekick' because they were going for something out of the form. Eastern Sidekick initiated by Hangyul and Myungchul from circle activity, then other members joined. Accordingly, every song's title and lyrics written in Korean to have a strong Eastern atmosphere only composed and written by Hangyul as the band's leader. Eastern Sidekick is known for their own oriental garage rock sound well. They also became known to Korean indie music scene by won 'Rookie Of The Years' of Olleh Music Indie Awards, EBS Hello Rookie 2010 and Hyundai Card Music: Indie Band TV commercial.