J-boys meet Leno

Set those TiVo's (or VCRs if you're old school).The San Francisco cast of Jersey Boys -- the whole cast, not just the boys -- will be on ``The Tonight Show with Jay Leno'' this Monday (March 19). Aparently they'll be performing a Frankie Valli and the Four Seasons medley.And, speaking of late night, Conan O'Brien will be broadcasting from San Francisco's Orpheum Theatre (current home of Altar Boyz) from April 30 through May 4. You can attempt to get "Late Night" tickets at www.nbc.com/conan/sanfrancisco.The guest roster has yet to be announced.