Better change your laundry night, or just start wearing dirty clothes. Because for the past 18 months on Mondays, the Blue Shadows have been holding court at King King, staking claim to what was formerly the most staying at home night of the week. This is a joint that deserves to have Gene Vincent on the jukebox (let alone Cal Tjader and the Hollywood Flames), and a band that deserves to wear sideburns. What you get is an evening that truly jumps, music stripped right down to the bone, in a room that encourages you to sweat, to get drunk on conversation as much as lukewarm Bud. Tuesday should be just as bad.

The Blue Shadows have been playing two sets every Monday here since the garish red-green-black building opened its double doors in December '88. The faces, slicked-back hair and carefully dangling cigarettes may all look familiar: the band includes former Blasters drummer Bill Bateman and Telecaster lead Davin Alvin; the Red Devils' Bartel brothers; Johnnie Ray on standup bass; David Bartel on a shiny Gretsch guitar; and the vocal conductor is harmonica-blowing handler howlin' Lester. But the thing about King King Mondays, too, is that the Blues Shadows are just the nucleus: honorary Shadows include secret agent man Johnny Rivers and the guy who just won't die, Bruno "Sonny Boy" Willis. (He bought the rights to sing the blues.) Pianist Gene Taylor sits in with the Shadows July 23 and 30. This is 16 tons of rockabilly rhythm blues hillbilly swing that works a room. This is the backbone of the Devil's music.