The first-ever Catalpa Festival is set to take place on Randall’s Island in New York City on July 28th and 29th boasting a lineup that features HT faves The Black Keys, Umphrey’s McGee, Snoop Dogg and TV on the Radio. Today, event organizers added another batch of bands to the event – Girl Talk, Cold War Kids, Matt & Kim, Hercules And Love Affair, Matisyahu, Dirty Heads, The Sheepdogs and Hook N’ Sling. Tickets are still available and we’ll be giving away a pair soon. In other Catalpa news, Umphrey’s McGee will play two sets at the festival.