This isn't South London - but - we've found Jason who was doing karaoke at the Blue Anchor pub before.
He's in a nice pub near Shepherd's Bush, so still pretty central, lots of songs to choose from.
7:30pm(ish) until about 11:30pm
This will be a joint meetup with Active Karaoke (& other meetup groups).
Hope some of you will join us!
Athena, below, is the host from Active Karaoke: