"Tessie" is both the longtime anthem of Major League Baseball (MLB)'s Boston Red Sox and a 2004 song by the punk rock group Dropkick Murphys. The original "Tessie" was from the 1902 Broadway musical The Silver Slipper. The newer song, written in 2004, recounts how the singing of the original "Tessie" by the Royal Rooters fan club helped the Boston Americans win the first World Series in 1903. The name Tessie itself is a diminutive form used with several names, including Esther, Tess, and Theresa/Teresa.