From 1972 to 2014, Nabors sang "Back Home Again in Indiana" with the Purdue All-American Marching Band before each Indianapolis 500 race. In March 2014, Nabors announced that the 2014 Indianapolis 500 would be his final appearance, because health issues were limiting his ability to travel. Since his retirement from this role, the singing of "Back Home Again in Indiana" is now done on a rotating basis (as it had been before Nabors became the regular performer).