A new, independent outdoor festival bringing almost 40 bands to the Old Town Spring fairgrounds, End Hip End It — confused about the name? Just sound it out — reboots the old idea that the quickest way to guarantee a party is to invite a bunch of freaky musicians out to the country to get weird, a model used to great success in recent years by Austin’s Levitation. Covering four stages, the all-day event’s top headliners include Austin techno-rockers Ghostland Observatory; Iowa’s Radio Moscow, a Blue Cheer-ish heavy-blues trio; and the “swamp metal” of Savannah, Georgia’s Black Tusk. However, nearly half the lineup calls Houston home, among them Venomous Maximus, Los Skarnales, Folk Family Revival, Dmitri’s Rail, Chase Hamblin & the Roustabouts, Doomstress, Vanilla Whale, Sik Mule, the Grizzly Band and Mikey & the Drags. Besides their shared hometown, common threads among such a motley bunch will be few and far between. Tickets are $45 (GA) or $85 (VIP), and Halloween costumes are permitted.