In one of the more eclectic bills of the fall, Gym Class Heroes and the Roots will co-headline a tour beginning Oct. 2 in Baltimore, with support from U.K. up-and-comer Estelle.

Gym Class Heroes and the Roots will alternate headlining duties on the trek, which runs through Nov. 1 in Albany, N.Y. Tickets go on sale tomorrow (Aug. 12) for Gym Class Heroes' fan club members, and this weekend for the general public.

Gym Class Heroes has been out this summer with the Vans Warped Tour in advance of the Sept. 9 release of its Decaydence/Fueled By Ramen album "The Quilt."

As previously reported, the set boasts contributions from a number of big names, including the-Dream, Cool & Dre, Patrick Stump of Fall Out Boy, Busta Rhymes, Estelle and Daryl Hall.

First single "Cookie Jar" has sold 21,000 copies in four weeks of digital release, according to Nielsen SoundScan.

The hard-touring Roots are on tour internationally through the end of the Month but will then take a break until the fall run with Gym Class Heroes. Estelle will be making another U.S. push for her Homeschool/Atlantic debut, "Shine," which has sold more than 83,000 copies.

Here are Gym Class Heroes/the Roots' tour dates:

Oct. 3: Baltimore (Rams Head Live!)
Oct. 4: Norfolk, Va. (The Norva)
Oct. 5: North Myrtle Beach, S.C. (House of Blues)
Oct. 6: Atlanta (The Tabernacle)
Oct. 7: Lake Buena Vista, Fla. (House of Blues)
Oct. 8: Miami (The Fillmore at Jackie Gleason)
Oct. 10: Houston (Meridian, w/ Estelle only)
Oct. 11: Dallas (The Palladium Ballroom)
Oct. 12: Austin, Texas (The Backyard)
Oct. 14: Phoenix (The Marquee)
Oct. 19: Las Vegas (House of Blues)
Oct. 21: Denver (The Fillmore Auditorium)
Oct. 23: Milwaukee (Eagles Ballroom)
Oct. 24: Chicago (Congress Theatre)
Oct. 25: Detroit (The Fillmore Detroit)
Oct. 26: Toronto (Sound Academy)
Oct. 28: New York (Roseland Ballroom)
Oct. 30: Worcester, Mass. (The Palladium Downstairs)
Oct. 31: Asbury Park, N.J. (Asbury Park Convention Hall)
Nov. 1: Albany, N.Y. (Washington Avenue Armory)