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CAVE CITY, Ky. (FOX 56) – For over 40 years, Mammoth Cave National Park has hosted a different kind of choir.

On Monday, the park said over 700 people joined its 43rd annual Cave Sing. The event included a performance by the Lindsey Wilson College Singers, who returned for their fifth Cave Sing.

Mammoth Cave Cave Sing finds its roots back in the winter of 1883 when a party of residents planned a Christmas celebration including singing and a 10-foot pine tree.

“My Old Kentucky Home” performed in the halls of Mammoth Cave by former Cave Guide Dr. Janet Bass Smith on piano, accompanied by Klaus Kaemper (descendant of Max Kaemper) playing cello. This recording was made inside Mammoth Cave during the annual Cave Sing in 2008. (NPS/ Chuck DeCroix)

The modern cave sing began in 1980 and according to the National Park Service, has become a cherished tradition.