You know the opening credits of That '70s Show, where the cast of characters shout along to the Todd Griffin cover of Cheap Trick's "In the Street" while crammed in a car? It's an instant flashback to the heyday of sex, drugs, and rock 'n' roll, and a sound and attitude embodied by San Francisco outfit Modern Kicks. The glam-rockers sport denim, leather, and shag haircuts, employing melodic hooks glittered with playful come-ons in KISS-style anthems. A song like "Crew 'n' Up" offers lyrical flirtations over the formulaic rock: all hot guitar licks and fist-pumping beats. At the Hemlock this week, expect a set that is short and sweet — and all about the party.