Ready! Set! Strum! Roy Sakuma’s annual ‘ukulele concert at Kapi‘olani Park celebrates 45 years with 20 acts from Hawai‘i and abroad, including Jake Shimabukuro, Willie K, Paula Fuga, Ohta-San, Herb Ohta Jr., the 700-strong Roy Sakuma ‘Ukulele Band, and a children’s group from Israel known as ‘Ukuleles for Peace making their Hawai‘i debut. Danny Kaleikini, Hawai‘i’s Ambassador of Aloha, emcees for the 44th straight year. Free admission. Free parking and shuttle from Kapi‘olani Community College to the park and back will be available. Related events include the ‘Ukulele Festival Hawai‘i Gala, 5:30 p.m. July 17 at Ala Moana Hotel ($85/seat; table sponsorships start at $1,500), and a free one-hour ‘ukulele workshop by Roy and Kathy Sakuma, July 18 at 10 am. at Ala Moana Hotel. info@ukulelefestivalhawaii.org or ukulelefestivalhawaii.org.