Jan. 30 .38 Special Harrah’s Casino, Council Bluffs 8 p.m., 21+, $35-$50, 888.512.SHOW harrahscouncilbluffs.com Like the assembly line worker banging out the same widget for a generation or more, .38 Special has been playing the same hits since the 1970s. Led by Donnie Van Zant (yes, his older brother Ronnie fronted the original Lynyrd Skynyrd and younger brother Johnny heads the group now), they’re perhaps best known for their signature hit “Hold on Loosely,” but they also had a string of other chart-toppers, including three that hit No. 1 on the Billboard charts. Like many of their musical contemporaries (see: Styx, Kansas, REO Speedwagon and countless others), the band continues to peddle their music to aging Baby Boomers, eager to lap up nostalgia that harkens to their glory days of a slimmer waistline and a fuller head of hair. Despite last cutting a new record in 2004, there’s something magical about the music that keeps the fans packing the clubs and casinos and coming back for another heaping helping.