Illustration of Youppi holding a baseball bat. Blue and orange text .
A creation of Acme Mascots, Inc., Youppi! is the former longtime mascot of the Montreal Expos (now the Washington Nationals). A giant and orange monster, Youppi! was first created by Bonnie Erickson, a designer for Jim Henson. The character was first leased to the Montreal Expos in 1979 and served as the teams official mascot until the end of the 2004 season upon the teams move to Washington D.C. Upon the teams move, Youppi's future was left uncertain. However, in 2005, Youppi was announced as the new official mascot of the Montreal Canadiens, an NHL team that is based in Montreal, Quebec. Youppi remains in the role and is officially the first mascot to have ever switched between any two major sports leagues in North America .