Swank late-night scene at The Prime Rib

The Prime Rib (at the Warwick, 1701 Locust St.) will launch a Saturday night series called "The Leopard Room: Late Night Lounge" with the All-Star Jazz Trio on Saturday, Oct. 19.

First set by pianist Andy Kahn, vibist Bruce Klauber and bassist Bruce Kaminsky starts at 10:45 p.m. A late-night menu will be available and there is no cover charge.

Late Night Lounge is intended to recall a time in Philadelphia when there were cool, elegant and sophisticated night spots.