Doug Benson: The stoner hero stand-up comedian, known for his documentary Super High Me, is performing just one show in Tampa and the time, of course, is 4:20. 4:20 p.m., Improv Comedy Theater, 1600 E Eighth Ave., Tampa. $20. (813) 864-4000.
Slipknot : The heavy metal band rose to fame in the '90s and is still touring today, embarking on the North American Summer Tour with Marilyn Manson and Of Mice & Men. 6:30 p.m., MidFlorida Credit Union Amphitheatre at the Florida State Fairgrounds, 4802 U.S. 301 N, Tampa. $23-$63. (813) 740-2446.
Polar Beach Party: MOSI launches its new "pay for a day, rest of the year free" Discovery Passport with an air conditioned beach party featuring bounce houses, a simulated shore line and real falling snow. 10 a.m., Museum of Science and Industry (MOSI), 4801 E Fowler Ave., Tampa. $26.95, $25.95 seniors, $20.95 ages 3-12; 2 and younger free. Member discounts available. Separate pricing for IMAX-only admission. It's $15 for the zip line only, or $10 with admission. Ropes course is $10 by itself, or $7 with admission. Parking is $5. (813) 987-6000.
Freedom Festival: Wesley Chapel Fourth of July: Wesley Chapel celebrates Independence Day early with this festival including a bicycle decorating contest, kids zone, live music, food trucks, watermelon eating contest, Little Miss and Mr. Firecracker Pageant and fireworks. 2 p.m., The Grove, 6333 Wesley Grove Blvd., Wesley Chapel. Free.
In This Moment: The alternative rock and metal band will be joined by Shaman's Harvest and Sunflower Dead. 6 p.m., Jannus Live, 200 First Ave. N, St. Petersburg. $24.50. (727) 565-0550.
Demi Lovato and Nick Jonas: See the Confident and Jealous pop stars as they co-headline Future Now: The Tour, just six months after they perform at Jingle Ball right here in Tampa. 7 p.m., Amway Center, 400 W Church St., Orlando. $27.95-$87.95. (407) 440-7000.
Rowdies Opening Night and Fourth of July Party: Join the Rowdies for opening night and a Fourth of July party. They take on the Jacksonville Armada at 7:30 p.m. Fireworks light up the sky immediately after the game followed by an on field concert by Flo Rida. 7:30 p.m., Al Lang Stadium, 230 First St. SE, St. Petersburg. $15-$80. (727) 222-2000.
Fourth of July at Shephard's: Rapper Vanilla Ice returns to kick off the annual 4th of July weekend party which runs until 2 a.m. $12. 9 p.m., Shephard's Beach Resort, 619 S Gulfview Blvd., Clearwater Beach. $12-$525. (727) 442-5107.
KIDS AND FAMILY
Canopy Tree Climbing: Climbers ages 6 and older can ascend into the canopy of a live oak tree using harnesses and a rope pulley system. 10 a.m., Pathfinder Outdoor Education, 1310 22nd Ave. S, St. Petersburg. $10. (727) 328-0300.
The American West, 10 p.m., AMC. The eight-part docudrama delves into little-known stories about Western legends such as Jesse James, Billy the Kid, Wyatt Earp, Crazy Horse and Sitting Bull.
MORE TO EXPLORE
Find recipes for Fourth of July parties at tampabay.com/things-to-do.