Yes , it was run by Miles and Sylvia Couchman ( a fine duo and lovely people).   When they finally packed it in the Irish singer Enda Kenny ran it for a while (he is now in Australia).
I did regular floor spots there and a couple of gigs. A lovely atmosphere and indeed a great pub as well. Only thing that put me off was a large mirror at the far end of performance area - luckily I usually sing with my eyes closed, but if you looked up you could see yourself in the mirror.
I was in Hampton Wick a few months ago. The Rose and Crown now longer exists - in its place was a Chinese restaurant (now also closed).