I can highly recommend a visit to Sharps, and not just because Sheila booked me twice in a year.
I had a thoroughly good time there and sing a range of traditional style contemptuos songs with finger picking accompaniment aimed at being entaining.
Good quality songs from a veriety of performers, heckling is encouraged, and chorus singing at one of the best club rooms for singing in.
Keith K played Disneyland Japan a few years ago, maybe Lynne Heraud may turn up!!!
Then Mon 13th Herga, 5 mins Harrow Wealdstone stn 15 Euston mainline for Shep Woolley

Go for it only 5 -10 mins walk from Camden Town Tube, Northern line.