The Lulu Show, 1969: Pan’s People & Lulu dance to Willie Mitchell’s Mercy.
From the old blog, Tuesday, 1 July 2014:
Thanks to my anonymous contributor, here’s another Pan’s people performance from The Lulu Show. This time Lulu herself is dancing with them, along with two blokes whose names I don’t have.
As Lulu says in her (slightly cheesy) introduction, the funky instrumental they’re dancing to here is Willie Mitchell’s Mercy.