When Anthony Ray first recorded Posse on Broadway, Dick’s Drive-In had *only* been on the street for 35 years. Sunday night, Sir Mix — a few Deluxe, fries and tartars later — was part of a day of music and celebration to mark the drive-in and cultural landmark’s 60 years of business on the central Capitol Hill strip. Sunday morning, CHS saw Sir Mix-a-Lot having a chat with Dick’s co-founder Dick Spady before Spady launched into a burger — the Dick’s cheeseburger, if you’re wondering — and the day’s performances (Recess Monkey, Sammy Witness & The Reassignment, Radio Raheem, Tilson XOXO, Don’t Talk to the Cops and Motopony filled out the locally oriented bill) and beer garden opened. Images and more from the rest of the Seattle-hot day on the pavement, below. Video (NSFW, by the way) via Tim Durkan.