Conversation so far:
What is SAW and its relationship to the musician, Mike Stock?
Stock Aitken Waterman (abbreviated as SAW) are an English songwriting and record producing trio consisting of Mike Stock, Matt Aitken, and Pete Waterman.
What music did Mike Stock work on during the Post-SAW time period?
In 1994 Simon Cowell asked Stock to produce the record for the popular kid's TV show 'Mighty Morphin Power Rangers' which was a top 5 hit in the UK.
What is the name of one of Simon Cowell's artists?
In 1994 Stock produced several artists for Simon Cowell including Kym Mazelle, Jocelyn Brown and Robson and Jerome.
Did Mike make any notable music with Simon Cowell's artists including Kym Mazelle, Jocelyn Brown, and Robson and Jerome?
Mike Stock, Kym Mazelle, Jocelyn Brown and Robson and Jerome's cover of Unchained Melody produced by Stock and Aitken became the highest selling non-charity single of the decade.

Question: How well did the song do on the charts?
Self-contained rewrite: How well did Unchained Melody produced by Stock and Aitken do on the charts?