"Go Colorado" was originally sung exclusively by the Glee Club at football games, though it is now played and known almost exclusively by members of the Golden Buffalo Marching Band. The most popular of the three fight songs and the most widely recognized is "Fight CU." Originally sung by the football team, the song has gained enough popularity that few people outside the band know that it is not the only fight song of the university. The original version included the line "fight, fight for every yard" but the line was changed to "fight, fight for victory" to allow the song to be used for all sports, not just football. Mascots The two mascots present at all football games are Ralphie, a live buffalo, and Chip, a costumed mascot who was selected to the 2003 Capital One All-America Mascot Team and won the 2009, 2010 and 2020 UCA Mascot National Championships. Ralphie is actually Ralphie VI and leads the football team onto the field at the beginning of the first and second halves. A buffalo leading the team onto the field dates as far back as 1934 and the Ralphie tradition began in 1966. In 1934 after the selection of Buffaloes as a nickname when a group of students paid $25 to rent a buffalo calf and cowboy as his keeper for the last game of the season. The calf was the son of Killer, a famed bison at Trails End Ranch in Fort Collins, Colorado. It took the cowboy and four students to keep the calf under control on the sidelines during the game, a 7–0 win at the University of Denver on Thanksgiving Day. Colors The official school colors are silver and gold, adopted in 1888 as a symbol of the mineral wealth of the state. In 1959, the athletic teams started using black and yellow, because silver and gold ended up looking like dirty white and dirty yellow. The colors have stuck and many are unaware that the official school colors are silver and gold. On May 28, 1981, black was curiously replaced by "Sky Blue" by a mandate of the CU Board of Regents, to represent the color of the Colorado sky. However, this color was different from the blue uniforms of the U.S. Air Force Academy. After three years, the blue was changed in 1984 to a darker shade, though still unpopular. In black and