[Nzoner]

They could have used KC's The Rainmakers as an example

Rockin' At The T-Dance

In the United States, the term has been broadened to refer to any casual afternoon dance event. An infamous example was the 1981 Hyatt Regency walkway collapse in Kansas City, Missouri, that occurred during an afternoon dance which killed 114 people and injured 200. The incident inspired the song "Rockin' at the T-Dance" by The Rainmakers.