Plenty of them
No profesional, poco profesional.
There is no king of disc jockeys.
Jockeys' Guild was created in 1940.
The ISBN of The Rock Jockeys is 0440410266.
Airchecks are typically a requirement for broadcast disc jockeys made by the stations for which disc jockeys work. Some disc jockeys choose to do airchecks on their own but it is uncommon.
The Rock Jockeys has 80 pages.
Because then they wouldn't be CAMEL jockeys, they would be HORSE jockeys. And there is a huge difference between the two.
The Rock Jockeys was created on 1995-03-01.
Baloncesto Profesional Colombiano was created in 1988.
The singular noun is jockey; the plural noun is jockeys.
Horse Jockeys relate to math and science! Horse Jockeys relate to math and science!
Equibase.com has lists of jockeys, horses and trainers plus a lot of other info.