"C·30 C·60 C·90 Go" is a song and single performed by British new wave band Bow Wow Wow and written by Dave BarbarossaLeigh GormanMalcolm McLaren andMatthew Ashman[1]

It was the world’s first-ever cassette single[2][3] and was first released in 1980. It entered the UK singles chart in July, reaching number 34 and staying for 7 weeks on the chart.[4][5] Their label, EMI, refused to promote the cassingle because it allegedly promoted home taping as Side B was blank.

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