Greg Lake performs his 1975 classic "I Believe in Father Christmas" filmed live at St. Bride's Church, Fleet Street, in the City of London with Jethro Tull' s Ian Anderson on flute, David Arch on keyboards, Florian Opahle on acoustic guitar and the church choir.I believe in Father Christmas - Greg Lake - Ian Anderson | December 17, 2011 | TarkusChristmas