The hats promote the Ford Caravan of Music, which on this occasion was sponsoring performances by The Lively Ones, the Serendipity Singers, and the Oscar Peterson Trio on February 4, 1965.
OSU attracted nationally known pop and rock artists to campus in the 1960s and 1970s. Many of the concerts were held in Gill Coliseum. Diamond also performed at OSU in 1970.