Last Saturday it was the End of Month Youth Keertan at Sri Guru Singh Sabha Gurdwara, Park Avenue, Southall. It's a monthly event from 8pm till 12am.
Some photos below (taken from Ravjeet Singh's flickr):
Jagdeep Singh doing keertan.
Satguru Sri Guru Granth Sahib jee Maharaaj
Bibi jee doing keertan
Bhenji Harmohan Kaur doing keertan
More photos on http://flickr.com/photos/rskhalsa/