Bruno Mars and Stetson launch limited-edition cowboy hat "The Regal" on September 26 for $380.

Bruno Mars has teamed up with Stetson to launch a limited-edition cowboy hat named "The Regal," inspired by the classic Ranger model. The hat will be available exclusively on Stetson.com starting September 26 at 11 a.m. ET for $380. It features a co-branded sweatband, a unique liner, and a decorative horseshoe pin. This collaboration follows Stetson's partnership with Post Malone.