You are invited! Sunday, August 27, from 6:30 to 8:30 p.m. Lou Ann David Park, 1060 Broadway, Somerville. Your friendly HONK! Festival founder and host, Second Line Social Aid and Pleasure Society Brass Band, is celebrating 20 years as a band by changing its name! They cordially invite you to celebrate with them. Enjoy a special public performance including band members past and present, a name-change ceremony and reveal, and cake for everyone!