(607NewsNow) — This week on Kat’s Hidden Camera, watch Deep Purple perform ‘Speed King’ live on the British TV show “Doing Their Thing” in 1970:

Their fourth album “Deep Purple In Rock” was released 55 years ago this week. This performance and the album feature the “Mark II line-up”: Ritchie Blackmore, Ian Gillan, Roger Glover, Jon Lord and Ian Paice.

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