The track stems from an old master reel labelled 'Yardbirds. October 10, 1968' (Led Zeppelin were called the "New Yardbirds" during their first months of existence). The master tape went missing for a number of years and allegedly turned up in a refuse bin outside Olympic Studios, following renovations in 1991. It was mixed by Mike Fraser for a much belated release in 1993, with a single to promote the Boxed Set 2.
The song was originally recorded under the title "Tribute to Bert Berns", in honour of the American songwriter and producer who had died in December 1967.