The Nothing Is Sound Tour was a 2005–2006 concert tour by the alternative rock band Switchfoot for their CD Nothing is Sound. It followed on the heels of their first, and highly successful, headlining tour in support of The Beautiful Letdown. The tour kicked off October 17 in Ventura, California, and ended with back to back shows at the House of Blues in San Diego on November 13. The tour also included three other bands: Eisley, Augustana and Reeve Oliver, though Augustana only played a few shows. The first leg of the tour consisted of 21 shows in total, and was followed by a second leg in 2006. Every single show during this tour sold out according to Switchfoot's official website.