Heaven Help Us! The Swingin' New Rat Pack Musical: This toe-tapping world premiere about God sending the Rat Pack back to Vegas to help a suicidal lounge owner is stylishly presented, with a terrific cast belting out some great tunes -- some 29 hits pop up in the show, ranging from brief refrains to full-blown song-and-dance numbers. Co-creator Ray Roderick's snappy direction and choreography and a fine on-stage jazz combo also sparkle. But the performance and production strengths only emphasize the weaknesses of the decidedly half-baked script: Heaven's creative team needs to get back in the kitchen. (Through September 5 at Florida Stage, Plaza Del Mar, 262 S. Ocean Blvd., Manalapan, 561-585-3433 or 800-514-3837.)