When isn’t a G.O-focused Mona Lisa fan cam a good thing? It is always a good thing. Whether on a Friday or any day, watching (and hearing) G.O during Mona Lisa is a tantalizing delight. I think it has been well over 100 days since I last honored a Mona Lisa performance, so time seems about right to have another. For this Fan-camming Friday, I am choosing a focused cam from the Cheong-gu Prime Concert on 8 August 2012.