UCA's Reynolds Performance Hall hosts a double-bill of nostalgia with Herman's Hermits ("Mrs. Brown You've Got a Lovely Daughter") and The Lettermen ("When I Fall in Love"), 7:30 p.m., $23-$40. Promising young singer/songwriter Lydia Loveless has drawn comparisons to Neko Case and Exene Cervenka; she performs at an 18-and-older show at Stickyz, 8:30 p.m., $6. The Big Boo!-seum bash offers families a host of local museum venues — Central High School National Historic Site, the Old State House Museum, EMOBA, the Clinton Presidential Library, MacArthur Museum of Arkansas Military History, Mosaic Templars Cultural Center and Heifer Village — as an alternate, pre-Halloween route for trick-or-treating and games, 6:30 p.m., free. Boo at the Zoo continues at the zoo (through Halloween) with rides, a haunted house, a magic show and more, 6 p.m., $7-$15.
The night before DJ Pretty Lights hosts a massive dance party at Verizon, a host of local DJs including DJ Durden, DJ Witnesse, Kramer and more spin at the Official Pretty Lights pre-part at Revolution, 9 p.m., $5 for over 21, $10 for under 21, ticket holders to Pretty Lights show get in free. Mississippi blues royalty David Kimbrough Jr. shares a bill with Brown Soul Shoes at Cornerstone Pub, 9 p.m., $5. Cabaret-rock act Randall Shreve & The Sideshow headlines a bill at Stickyz that includes Shreve sibling Benjamin Del Shreve and Fayetteville's A Good Fight, featuring Rep. Jon Woods (R-Springdale) on bass, 9 p.m.
The Arkansas River Blues Society hosts its annual contest to determine who'll represent the blues society at the Blues Foundation International Blues Challenge next year. Those vying for the position on Saturday at Parrot Beach Cafe include guitar whiz Josh Stoffer (formerly of Riverboat Crime), Lucious Spiller, Bluesboy Jag and Johnny Baxter, Ben "Swamp Donkey" Brenner and Chris Thompson, 7 p.m., $5. Discovery's Halloween bash promises to be the best venue in town to see or wear costumes that involve near nudity; Dominque, Hollywood, Ewell, Jacob, Ramon, Jared and Rufio provide the entertainment, 9 p.m. For something likely as hopping, but with less near-nudity and glow-in-the-dark body paint, g-force DJs at Cajun's Halloween party and costume contest and The Buzz's Pat Bradley emcees, $5, 9 p.m. At the Afterthought, The B-Flats host a Halloween party, 9 p.m., $7.