First up they’ll journey to Australia for a couple of dates – August 1 at Metro in Melbourne and August 3 at Luna Park in Sydney – before heading to Japan for a pair of appearances at Tokyo’s Summersonic Festival in Chiba Stadium (August 11 – 12).

Then it’s on to the Van’s Warped tour for seven shows beginning August 14 at the Verizon Wireless Amphitheatre in Maryland Heights, Mo., and finishing up August 25 at The Home Depot Center in Carson, Calif.

Finally, the band’s headlining tour kicks off September 8 at Station in Portland, Ore., and wraps up September 28 at Chicago’s Metro/Smart Bar. Other scheduled stops include Red Rocks Amphitheatre near Denver (September 13), the 9:30 Club in Washington, D.C. (September 18), Trocadero & Balcony in Philadelphi (September 21), and The Intersection in Grand Rapids, Mich. (September 27).

Co-headlining with Sum 41 on a week of their U.S. dates are alt-rockers Yellowcard. Additional support for various dates on the tour will come from Amber Pacific and Monty Are.

Presale tickets are available through a link on Sum 41’s MySpace page.