Today, Jeff Tweedy released his new memoir, Let’s Go (So We Can Get Back), and the Wilco frontman celebrated early with a visit to The Late Show with Stephen Colbert in which he spoke with the host about a couple stories in the book and performed “Let’s Go Rain” from his upcoming solo album, Warm, which is set for release on November 30.

“This is the coolest thing that’s ever happened to me,” Tweedy begins the interview, after emerging from backstage and immediately seeking out an audience member to embrace. The singer-songwriter then discusses why he wrote the retrospective Let’s Go at a relatively young age, (half-)joking, “I thought I would write it now before I forget everything.”

Tweedy and Colbert also got into some of the anecdotes from the memoir, including the time Tweedy brought a recording of Bruce Springsteen’s landmark 1975 album Born to Run into his third-grade class and told his classmates that not only did he write the entire album, but also that he played all the instruments and sang The Boss’s parts. “They did not buy it,” Tweedy admits.

Before his performance, Tweedy responds to Colbert’s question about why Wilco named a 2015 album Star Wars, claiming, “We were trying to get George Lucas to sue us so we could rerelease the album as Cease and Desist, but he didn’t bite.”

Tweedy then teamed up with a backing band that featured his son Spencer on drums and other son Sam on backing vocals. Before the performance of Warm track “Let’s Go Rain,” which featured fake clouds and rain plus a Noah’s Ark full of pairs of animals, Tweedy noted to Colbert that the song is “a joyous plea for the sweet relief of death.”

Watch Tweedy’s Late Show appearance below.