Dominic James "Nick" LaRocca, was an American early jazz cornetist and trumpeter and the leader of the Original Dixieland Jass Band, who is credited by some as being "the father of modern jazz". He is the composer of one of the most recorded jazz classics of all-time, "Tiger Rag". He was part of what is generally regarded as the first recorded jazz band, a band which recorded and released the first jazz recording, "Livery Stable Blues" in 1917.

The Original Dixieland Jass Band (ODJB) was a Dixieland jazz band that made the first jazz recordings in early 1917. Their "Livery Stable Blues" became the first jazz record ever issued. The group composed and recorded many jazz standards, the most famous being "Tiger Rag". In late 1917, the spelling of the band's name was changed to Original Dixieland Jazz Band.