many other bands, most of them underground. Several bands have also made music directly related to St. Pauli: The Norwegian punk rock band Turbonegro recorded a special version of their song "I Got Erection" with re-worked German lyrics for St. Pauli. In 2009, Italian ska combat-folk punk band Talco from Marghera, Venice, wrote the song "St Pauli". The team has since used the song as an anthem and Talco has played a number of concerts at Millerntor-Stadion. Glasgow band The Wakes have also played the Millerntor, having written "The Pirates of the League" about the club. Also, British band Art Brut has written a song about the club called "St Pauli" which is featured on their album It's a Bit Complicated. In 2010, FC St. Pauli celebrated its 100th anniversary. For the occasion, the fan club 18auf12 recorded the song "Happy Birthday St.Pauli, One Hundred Beers for You", with words and music by Henning Knorr and Christoph Brüx. The Canadian punk rock band The Pagans of Northumberland recorded a song in 2014 called simply "St Pauli" for their first 7-inch detailing their love of the club and its supporters around the world. In January 2017, FC St. Pauli announced an extensive co-operation with Irish-American Celtic punk band Dropkick Murphys. The co-operation includes a strictly limited seven-inch picture disc of the song "You’ll Never Walk Alone" recorded by the band, and new club merchandise labeled "You’ll Never Walk Alone", sporting both the club and the band. When the team played in Germany's 2nd Bundesliga, their home fixtures at the Millerntor used to average greater attendances than any other team and often exceeded turnouts for second division teams. As of the 2011–12 season, St. Pauli is the only team that has close to 100% in average home attendance. In 2006, St. Pauli had more season ticket holders than many Bundesliga teams. One study estimated that the team has roughly 11 million fans throughout Germany, making the club one of the most widely recognised German sides. The number of official fan clubs in 2011 passed 500 which is an increase of 300 over three years. In January 2020, the club's famous skull and crossbones flag was listed by the United Kingdom's counter-terrorism police in a guide sent to public sector workers, to notice potential extremism, prompting a backlash from St Pauli's Welsh defender James Lawrence. Club culture St. Pauli opens its home matches