The Beach Boys likely did NOT play the September 6 Trocadero show
The September 6, 1963 “Back to School Dance” at Elitch Gardens’ Trocadero Ballroom was advertised with the Beach Boys, the Castells, the Astronauts, and Bobby Vinton — but it appears that the Beach Boys did not ultimately appear. Radio station KIMN stated that the Beach Boys were expected to appear at this show but that they reneged. KIMN then sued the group. However, radio station KDAB, which had sponsored the September 4 show, argued that the Beach Boys had made no promise to appear at the KIMN dance. Ron Curtis, general manager of KDAB argued that the rival station had tried to coerce the group into playing the additional date. KIMN claimed that their rival threatened not to play the Beach Boys records if the group played their dance and also sued KDAB.
That source also documents a related, confirmed appearance: on September 4, 1963, the Beach Boys played the Moonlight Ballroom in Denver, a benefit for the Jefferson County Association for Retarded Children, sponsored by radio station KDAB, after which the group judged a “Miss Denver Surfer” contest. That’s a separate venue from the Trocadero.
What this means for the Trocadero documentation
- The advertisement is genuine promotional material — it accurately reflects what KIMN advertised for September 6. But an advertisement documents intent to appear, not confirmed appearance.
- The strongest lead for primary-source verification is the KIMN-vs.-Beach-Boys lawsuit.
