Brass Knucklehead: The local brass-heavy band plays ska classics with a punk-rock twist as part of the monthly Sunday on the Waterfront concert series. Expect to hear favorites from ’90s bands such as Reel Big Fish and the Mighty Mighty Bosstones. Bring a blanket or lawn chair for seating for the outdoor concert. 4 p.m., Meyer Amphitheatre, 105 Evernia St., West Palm Beach. 561-822-1515, wpb.org. Free.
Florida Live Entertainment presents three up-and-coming South Florida artists in a benefit for Heart Harbor Rescue. Performing are Bianca Jazmine, Swing Somethin’ and Exigent. 5 p.m., Open Stage Club, 2325 Galiano St., Coral Gables. 305-441-7902, openstageclub.com. $5.