Luis Óscar Agudelo Márquez (23 September 1932 – 16 December 2023), popularly known as El Zorzal Criollo, was a Colombian musician.
He made his debut in Girardot with the song Hojas de Calendario.
There he formed a trio with the musicians Nelson Ibarra and Alfonso Medina, and from 1953 started to record discs.
Although best known for la canción sureña, the tango also formed an important part of his repertory.
His health had been deteriorating for a number of months, and he had been suffering from both Parkinson's and Alzheimer's diseases.