Sadly not much information about Ciro's Club on the net - only this -
"The Sunset Strip has long been known as the playground of the stars. The brightest stars, the biggest moguls and most Oscar-winning artists dined, danced and romanced in clubs along the Strip. The most popular rendezvous, Ciro’s , opened in 1940."
Now it's the Comedy Store apparently.
Ciro's Club Dance Band - Ol' Man RiverCiro's Club Dance Band - A Room With A View