Girls' Generation

Kim Taeyeon - vocals, guitar, percussion, keyboards

Jessica Jung - vocals, keyboards, guitar, bass, percussion

Lee Soonkyu "Sunny" - vocals, percussion, keyboards, guitar

Tiffany Hwang - vocals, bass, guitar, percussion, keyboards

Kim Hyoyeon - vocals, guitar, keyboards, drums, percussion

Kwon Yuri - vocals, guitar, bass, drums, percussion, keyboards

Choi Sooyoung - vocals, drums, percussion, guitar, keyboards

Im Yoona - vocals, guitar, bass, percussion, keyboards

Seo Joohyun "Seohyun" - vocals, keyboards, guitar, percussion

The Boys (Backing Band)

Mitchell - drums, percussion

Brodie - guitars

Jack - guitars

James - bass guitar

Nathan - piano, keyboards

Andrew - keyboards