Rob Thomas headed for Great Unknown Tour

Brian Mansfield | USA TODAY

Rob Thomas plans to release a solo album late this summer, but fans can hear new material early on The Great Unknown 2015 Tour. Thomas will kick off the 37-city tour June 11 in Orillia, Ont.

"I'll be playing some of the new stuff, some of the old stuff — a little bit of everything," Thomas said in a tongue-in-cheek YouTube video announcing the tour. In the clip, Thomas also said he would release a single from the album at the beginning of the summer.

Thomas announced the title for his new solo album on Twitter last summer.

As frontman for Matchbox Twenty, Thomas has written and sung such hits as Push, Bent and If You're Gone. He has also had several hits as a solo act, including Lonely No More and This Is How a Heart Breaks. Thomas won three Grammys for his work as a vocalist and co-writer on Santana's 1999 smash, Smooth.

The Great Unknown will be Thomas' third solo set, his first since 2009's Cradlesong.

Plain White T's will be special guests on The Great Unknown 2015 Tour, which will continue through Aug. 10.

Ticket pre-sales will begin Wednesday, and tickets will go on sale Friday and Saturday for most shows.

The Great Unknown 2015 Tour dates follow:

June

11 - Casino Rama Resort, Orillia, Ont.

12 - The Colosseum at Caesars Windsor, Windsor, Ont.

13 - Akron Civic Theatre, Akron, Ohio

15 - Palace Theatre, Columbus, Ohio

16 - Murat Theatre at Old National Centre, Indianapolis

18 - Riverside Theater, Milwaukee

19 - Northrop Auditorium, Minneapolis

22 - Sprint Center, Kansas City, Mo.

24 - Paramount Theatre, Denver

27 - Boise Music Festival, Boise

29 - Paramount Theatre, Seattle

30 - The Arlene Schnitzer Concert Hall, Portland, Ore.

July

2 - The Mountain Winery, Saratoga, Calif.

3 - Gallo Center for the Arts, Modesto, Calif.

5 - Vina Robles Amphitheater, Paso Robles, Calif.

7 - Fox Performing Arts Center, Riverside, Calif.

9 - Comerica Theatre, Phoenix

11 - Majestic Theatre, San Antonio

12 - ACL Live at The Moody Theater, Austin

13 - Brady Theater, Tulsa

15 - Peabody Opera House, St. Louis

18 - Ravinia Festival, Highland Park, Ill.

21 - Delta Classic Chastain Park Amphitheater, Atlanta

22 - Ryman Auditorium, Nashville

24 - Ruth Eckerd Hall, Clearwater, Fla.

25 - St. Augustine Amphitheatre, St. Augustine, Fla.

26 - North Charleston Performing Arts Center, N. Charleston, S.C.

28 - Uptown Amphitheatre at NC Music Factory, Charlotte

29 - nTelos Wireless Pavilion, Portsmouth, Va.

31 - Count Basie Theatre, Red Bank, N.J.

August

1 - Count Basie Theatre, Red Bank, N.J.

2 - Borgata Hotel Casino & Spa, Atlantic City

4 - Sands Bethlehem Event Center, Bethlehem, Pa.

5 - Blue Hills Bank Pavilion, Boston

6 - Beacon Theatre, New York

9 - Mohegan Sun Arena, Uncasville, Conn.

10 - Mayo Performing Arts Center, Morristown, N.J.