Young Jarl Squad vikings shout as they march through the streets on the morning of the Up Helly Aa fire festival in Lerwick, Shetland Islands, Scotland

Young Jarl Squad vikings shout as they march through the streets on the morning of the Up Helly Aa fire festival in Lerwick, Shetland Islands, Scotland January 29, 2013. The Up Helly Aa festival, introduced by men returning from the Napoleonic Wars of the early 19th century, takes place annually on the last Tuesday of January. REUTERS/David Moir (BRITAIN - Tags: ANNIVERSARY ENTERTAINMENT SOCIETY) - RTR3D48V