 MGMT contributed, alongside Devendra Banhart, Andrew Stockdale of Wolfmother and Binki Shapiro of Little Joy.During the production of "Congratulations" in 2009, VanWyngarden and Goldwasser met with Lou Reed, the former lead singer and guitarist of The Velvet Underground, about contributing vocals to "Lady Dada's Nightmare".VanWyngarden recalls, "he pretty much said it didn't need it.