In a sense, Garth Brooks is returning to where it all began. The singer has announced the third city on his Blame It All on My Roots Tour. Garth Brooks Blame It All On My Roots Tour begins in Indianapolis on Aug. 20. Courtesy of Garth Brooks Courtesy of Garth BrooksGarth Brooks In Chicago, Ticket DetailsTickets for two September concerts will go on sale Aug. 7 at 10AM CT through Ticketmaster. Garth Brooks' 2026 Blame It All On My Roots Tour Dates:Aug. 20 — Indianapolis, Ind.