Jewmongous, a comedy-song concert with occasional guests, is the brain child of Sean Altman, the song writer behind the comedy act "What I Like About Jew" and the founder and former leader of the vocal group Rockapella—stars of the TV series "Where In The World Is Carmen Sandiego?" Described as having a "silky tenor voice" by the NY Times and "a cynical edge" by the Philadelphia Daily News, Altman is also a member of the Loser's Lounge series in Manhattan, sings with Kol Zimra Jewish Acapella and performs charity concerts with Voices For Israel. To preview Jewmongous lyrics—self-described as "unkosher"—visit www.jewmongous.com. Must be 21 or older to attend. Doors open at 6:30 pm, show starts at 7:30 pm. $18 advance, $20 at the door. Tickets available through www.mcmenamins.com. White Hall Saloon, 836 N. Russell St. 503-282-6810.