NEIL DEGRASSE TYSON
7:30 p.m. Reynolds Performance Hall. Sold out.
Neil deGrasse Tyson grew up in the Bronx, where as a high schooler he was captain of the wrestling team and also occasionally gave widely attended lectures on astronomy. Dr. Tyson is a prize-winning ballroom dancer, and was instrumental in downgrading the classification of Pluto from planet to dwarf planet. A former columnist for Natural History magazine, he also saw his wine collection highlighted in the May 2000 issue of Wine Spectator. He idolized Carl Sagan as a kid, even frequently corresponded with him — Sagan lobbied to have Tyson study with him at Cornell. Fittingly, he was also recently tapped to succeed Sagan as host of a rebooted "Cosmos," to pilot what Sagan famously called the "Spaceship of the Imagination." Before he sets out for the "edge of the known universe," however, he will stop in Conway. Unless you're a super fan or can talk a super fan out of his ticket, you're out of luck; Tyson's appearance sold out in 45 minutes.
10 p.m. Juanita's. $20.
DJ Paul is a founding member of Three 6 Mafia, an Academy Award winner and, more recently, the entrepreneur behind a very well-regarded line of BBQ seasoning. His earliest releases were great and unsettling, built from horror movie tropes and paranoia. I once interviewed Juicy J, who started Three Six with Paul, and he said of their early output, "Memphis is such a dark city, the music just came out dark." Later they helped kick-start the crunk era and made a handful of chart-impacting hits. After a detour in Hollywood that included a reality show (sample plotline: Ashton Kutcher sets Juicy up on a date with one of the stars of "Laguna Beach," who appears disoriented), they returned to Memphis, where Paul now makes dark and energetic underground rap tapes again. Not long ago, I read he was arrested for carrying a Taser and claimed, "I honestly didn't know it was illegal," which seems plausible.
10 p.m. White Water Tavern. $10.
Have you ever wondered who will sop your gravy when you're dead? These are the sorts of questions that trouble Squirrel Nut Zippers founder Jimbo Mathus, who grew up in Mississippi, makes rowdy Delta swamp rock and will be playing an album release show this Friday with his band, The Tri-State Coalition. Mathus is a real homegrown eccentric, with scruffy long hair and a hound dog named Virgil Brown. He has a loud drawl and intense, bugged-out eyes, kind of like Captain Beefheart in his trailer-in-the-desert period. There's a sense of old-fashioned showmanship to what he does that's easy to admire, and he has an obvious respect for his own culture to go with his natural songwriting ability. The late producer Jim Dickinson apparently once said he had "the singing voice of Huck Finn," which is an unusual, beautiful compliment, and appropriate.
'SLOW SOUTHERN STEEL'
7 p.m. Ron Robinson Theater. Free.
It's tempting to get romantic and attribute the dizzy, Deep South sludge metal sound to all the usual regional qualities — the humidity and the swamps and the poison ivy and the drugs and the "Midnight in the Garden of Good and Evil" hoodoo mysticism. It's also probably true. How else do you explain the strain of metal that one person in Rwake singer Chris Terry's documentary "Slow Southern Steel" describes as "like Slayer dipped in syrup"? The film delves deeps into the phenomenon, featuring interviews shot, as the film claims, "in back alleys, parking lots, and the seedy green rooms of the dirtiest clubs that the Bible Belt failed to snuff out," starring sludge metal icons from Eyehategod to Dark Castle, and with narration by Weedeater frontman "Dixie" Dave Collins. The Ron Robinson Theater's free showing kicks off a monthly series of music films. Saturday's screening will be followed by an acoustic set by Jeremiah James Baker.
EVELYN 'CHAMPAGNE' KING
9 p.m. Doubletree Hotel. $25 adv., $35 day of.
Broadway Joe, host of Power 92's 24-years-and-counting "Broadway Joe Morning Show," will emcee an event this weekend to benefit Little Rock charity basketball team the Jammers, at which, incredibly, the disco and R&B legend Evelyn "Champagne" King will be headlining. If you don't know her, take a few moments and listen to "Shame" (the long version) or "Love Come Down" or, better yet, watch the video for "I'm In Love," which looks like an outtake from "Tron." King was initially discovered cleaning bathrooms at Philadelphia International in the mid-'70s — someone overheard her singing and offered her a record deal on the spot. She is an icon and Little Rock is lucky to host her. Also performing will be R.L. (formerly of '90s R&B group Next) and Willie P. Doors open at 8 and advance tickets are available at Ugly Mike's Records, Uncle T's Food Mart and Record Rack (in Pine Bluff).
10 p.m. White Water Tavern. $7.
Jack "Oblivian" Yarber played in a high school punk band with fellow To-Do List contender Jimbo Mathus, though their sounds have diverged since then, with Yarber doing stints in a string of rambling and distinctly Memphian garage-punk bands. The best known of these have been the Compulsive Gamblers and the Oblivians, both also featuring Greg Cartwright (the latter also with Goner Records founder Eric Friedl). The Oblivians released a new record last year after a length hiatus, and it served to emphasize how many younger Memphis bands have followed in precisely their same, first-thought-best-thought, lo-fi-drunken-Kinks tradition. These days he performs solo and with a group called the Tennessee Tearjerkers, often featuring last week's To-Do Lister John Paul Keith. Also on the bill are Memphis band The Sheiks and Little Rock's own Trophy Boyfriends.
LITTLE ROCK MARATHON
8 a.m. Downtown Little Rock.
Whether you're running in the Little Rock Marathon, want to root on someone who is, or avoid it at all costs, it's important to be aware that this is happening on Sunday —runners and walkers alike of the marathon, the half-marathon, the 10K and the 5K will be taking over the streets. They'll start at Sherman and President Clinton Avenue downtown before taking a wildly convoluted route that will go as far south as 18th Street, traverse West Markham, Kavanaugh, Lookout and Cantrell, and venture into North Little Rock for several blocks. Don't even think about driving to the river.
7 p.m. Walton Arts Center, Fayetteville. Sold out.
It's tax season, a time of year in which it's especially important to keep Willie Nelson and his contributions to this country in mind. Because throughout all of Nelson's personal, legal and cultural triumphs, his greatest obstacle has always been the IRS. They've taken recording studios, his family ranch, most of his latter-day royalties and career memorabilia. In 1990, the IRS raided his home and took everything he owned but his guitar. He even released an album called "The IRS Tapes: Who'll Buy My Memories?" which at the time could be purchased by dialing 1-800-IRS-TAPE. As he once put it, "I've been broke before, and will be again." Think about that, and pay attention to your taxes, because this stuff is serious. And go see Willie Nelson on Tuesday if you can manage to talk someone out of her ticket; the show's sold out.