okra boom, okura buumu, akiyama mio, hirasawa yui, kotobuki tsumugi, tainaka ritsu, don't say "lazy", k-on!, 00s, 4girls, bare shoulders, drumsticks, elbow gloves, electric guitar, gibson les paul, gloves, green pantyhose, guitar, hair bun, hat, ho-kago tea time, instrument, keytar, mini hat, mini top hat, multiple girls, musical note, pantyhose, single glove, single hair bun, striped clothes, striped gloves, top hat