This article is from the College marching band FAQ, by Adam Elman firstname.lastname@example.org, Meredith McClurg email@example.com, Patrick Neschleba firstname.lastname@example.org and Craig Moe email@example.com with numerous contributions by others.
The earliest appearance of the cheer was at Michigan, where it's known as
"Let's Go Blue." It was arranged by Joe Carl, a tuba player from 1973 to
1976, and Albert Ahronheim, a drum major from 1972 to 1974. It originated
as a cheer at Michigan hockey games before moving to the gridiron.