Jack Pearadin and Doug Nelsen found a 1.73-carat diamond after nearly a year of searching the park's field.
Kevin Kerby plays at the Dunbar Community Garden Project, 5:30 p.m., $5. Writer and humorist David Sedaris appears at the Walton Arts Center in Fayetteville, 7 p.m., $38-$58. Christian music star Chris Tomlin performs at Verizon Arena, 7 p.m., $24.50-$63.50. Comedian Skip Clark is at the Loony Bin at 7:30 p.m. Thursday, $7 (and at 7:30 p.m. and 10 p.m. Friday and Saturday, $10). Shoog Radio presents Arkansas Times Musicians Showcase winner Ghost Bones and Little Rock's The Hacking, 9 p.m., $5.
Sculpture at the River Market preview party is at 6:30 p.m. at the River Market pavilions ($100) and Bronze and Brewskis follows at 8:30 p.m. to 10:30 p.m. ($30); public exhibition Saturday and Sunday, April 25-26. Blues on the River 2015, featuring Shirley Jones, Sir Charles, Lenny Williams, Ms. Jody, Denise LaSalle, Mel Waters and more, is at the North Shore Riverwalk 6 p.m. Friday and Saturday, $30-$40. Classical organist Graham Schultz performs works by Bach and Mendelssohn at the Cathedral of St. Andrew, 8 p.m., free. Full of Hell and The Body play at Revolution with Child Bite, Seahag and Terminal Nation, 8:30 p.m., $10-$12. The Arkansas Jazz Festival, with performances by various Arkansas high school groups, as well as the UALR Jazz Ensemble, is at the Clinton Presidential Center Friday and Saturday, free. Britney Spears impersonator Derrick Barry performs at Sway, 9 p.m. Rodney Block and The Real Music Lovers present Bijoux and Brad Williams (of The Salty Dogs) at the Afterthought, 9 p.m., $10.
The Cardiac Classic Bike Ride, featuring Lance Armstrong, begins at Burns Park at 7 a.m., $35. Local poetry collective Foreign Tongues presents "Speak Now or Forever Hold Your Piece" at the Mosaic Templars Cultural Center, 7 p.m. Indie folk favorites Iron and Wine perform at Juanita's, 8 p.m. (sold out). House of Avalon's 3rd Annual #BritneyBxtch party is at Sway, 9 p.m. Nashville garage punk band Pujol plays at Stickyz with Little Rock's The Uh Huhs, 10 p.m., $8.
The John Burnette Band plays a free concert at the History Pavilion in Riverfront Park as part of Jazz in the Park, 6 p.m. At Revolution, local rap collective Young Gods of America presents a night of local underground rap, featuring Goon Des Garcons, Fresco Grey, Taylor Moon, Vile Pack, Yung Kiri and more, 9 p.m., $7 adv., $10 day of. Bonnie Montgomery plays at White Water Tavern, 9:30 p.m.