Thomas Rhett headlines LASSO Montreal 2026 at Parc Jean-Drapeau in Montreal, QC. This premier country and roots festival runs August 15-16, with Thomas Rhett headlining the first day. The lineup also includes Mumford & Sons, Jon Pardi, Old Dominion, and many more. This is Thomas Rhett's only Canadian date on his summer tour, making it a special event for Canadian fans. Experience two days of incredible music in the beautiful setting of Parc Jean-Drapeau on île Sainte-Hélène. Weekend and single-day passes are available. Don't miss your chance to see Thomas Rhett headline this major festival. Book your tickets now.