The comedic rock duo Tenacious D -- Jack Black and Kyle Gass -- is finally tasting the success it has been bragging about for years. While its self-titled Epic debut is at No. 105 in its seventh week

The comedic rock duo Tenacious D -- Jack Black and Kyle Gass -- is finally tasting the success it has been bragging about for years. While its self-titled Epic debut is at No. 105 in its seventh week on The Billboard 200 -- Black's acting career, which took off following last year's music-intensive "High Fidelity" -- is also on the move with his lead role in the Farrelly Brothers' new feature "Shallow Hal." Despite the movie's title, Black tells Billboard.com he is nothing like the main character.

"Very far away," he says. "It was a stretch and I think I pulled a 'hammy.'" Gass quickly adds, "Jack appreciates people on a very, very sophisticated and deep level. Actually, the character was closer to me."

Having first gained fame on HBO with its off-centered comedy, alluring acoustic hooks, and self-glorifying lyrics, Tenacious D finds itself in a precarious situation: are its members comedians playing music or musicians doing comedy?

"We can't be concerned with categorization," Gass says. "... It's not in the comedy section," interjects Black. "You'll find it in the rock section. Enough said. I don't care what anyone says. Accept us as you will or not and we will continue on as the only true ... something ... in the world."

Fans can judge for themselves now that Tenacious D is out on the road with Jimmy Eat World supporting Weezer's Extended Midget tour. The trek hits Boise, Idaho, tomorrow (Nov. 17) and ends Dec. 11 in Portland, Maine. What made the tour a good fit? "Because it's going to be fun, we get to play a lot bigger venues, and we get a chance to move a lot more units," Gass says. "And we get a chance to get jiggy with some of the Weezer fans," Black adds.

In the meantime, it remains uncertain what takes precedence in Black's future: Tenacious D or acting? ("Have you ever heard of someone named Kenny Rogers?" asks Black. "Have you ever seen a film called 'The Gambler?'"). However, Gass hints that, after the Weezer dates, the duo is considering a project that incorporates both talents.

"We're going to work on our motion picture, 'Tenacious D, The Movie,'" he offers. Considering their propensity for stretching the truth, it's unclear whether Gass and Black are lying or offering up a secret. "No, you've got a scoop. It's going to be good."

Here are Tenacious D's tour dates:

Nov. 17: Boise, Idaho (Bank of America Center)
Nov. 19: San Jose, Calif. (SJSU Events Center)
Nov. 20: San Diego (Cox Arena)
Nov. 23: Long Beach, Calif. (Arena)
Nov. 24: Phoenix (America West Arena)
Nov. 26: San Antonio (Freeman Coliseum)
Nov. 27: Ft. Worth, Texas (Convention Center)
Nov. 29: St. Louis (Family Arena)
Nov. 30: Kansas City, Mo. (Auditorium Arena)
Dec. 2: Madison, Wis. (Alliant Energy Center)
Dec. 3: Normal, Ill. (Redbird Arena)
Dec. 5: Columbus, Ohio (Schottenstein Center)
Dec. 6: Kalamazoo, Mich. (Wings Stadium)
Dec. 8: Cleveland (CSU Convocation Center)
Dec. 9: Baltimore (Arena)
Dec. 11: Portland, Maine (Cumberland Civic Center)