Yes it was. I knew I recognised his face and then it hit me so I googled it which confirmed it for me. I don't know how I recognised him because I've never been that familiar with Chris Farlowe let alone a 50 years older Chris Farlowe.
Probably because the artists are under a lot more pressure to raise their game playing directly in front of their peers rather than their own adoring and already converted fans. I reckon it must be more nerve racking. Because of the intimacy of the setting it would make them much more conscious...