After a series of auditions in Los Angeles, Nashville, Dallas and Austin, 10 worthies compete on “CMT’s Next Superstar” (8 p.m., CMT). The five men and women singer/songwriters vie to be “discovered” and coached into becoming an emerging country artist. They range in age from 22 to 50 and will perform before a series of celebrity talent scouts. Thea Andrews (“Entertainment Tonight,” “Top Chef Canada”) hosts.

• In other musical news, “Foo Fighters” (9 p.m., Vh1) traces the 16-year history of the band and includes some clips of Dave Grohl’s earlier days as the drummer for Nirvana and how Grohl, Chris Shiflett, Nate Mendel, Taylor Hawkins and Pat Smear united as a band. We also sit in with the Foo Fighters as they assemble their new album in Grohl’s garage.

• When British rockers The Who declared, “I hope I die before I get old,” they had no idea of the employment opportunities for venerable rock ‘n’ rollers. Ringo Starr, now 70, probably broke ground for those who would follow when he assumed the voice of “Thomas the Tank Engine” in a British cartoon debuting in 1984.

Tonight, Ozzy Osbourne adds to his numerous television credits as the voice of The Earth Troll in a new episode of “Fish Hooks” (7:30 p.m., Disney). The Earth Troll is actually a character dreamed up by Oscar to scare Milo into becoming more environmentally sensitive and embrace the practice of recycling.

• You may know him from such shows as “Are You Smarter Than a Fifth Grader?”) but tonight Jeff Foxworthy takes a seat on “Shark Tank” (7 p.m., ABC) not as an entertainer but as an “entrepreneur.” And while we’re in the land of make-believe, we’re also treated to the sight of former “Sopranos” star Vincent Pastore as the first entertainer to pitch a business idea. He and his partner do business in New Jersey.

• A couple of dolts (Brad Pitt and Frances McDormand) become embroiled in CIA business in the 2008 comedy “Burn After Reading” (7 p.m. and 9 p.m., FX), also starring George Clooney, John Malkovich and Tilda Swinton.

Tonight’s other highlights

• Rick takes on a North Korean assignment on “CHAOS” (7 p.m., CBS).

• Ashley Judd goes looking for her roots on “Who Do You Think You Are?” (7 p.m., NBC) and discovers connections to one of America’s earliest families.

• Drama on Long Island on “Kitchen Nightmares” (7 p.m., Fox).

• A meteor brings a star child to Kansas in the pilot episode of “Smallville” (7 p.m., CW). Now in its last season, “Smallville” will air its final episode May 13.

• “Lost Land of the Tiger” (8 p.m., National Geogrphic) looks for tigers reportedly hiding in the Himalayan kingdom of Bhutan.

• An upscale food catering truck explodes on “CSI:NY” (8 p.m., CBS).

• A trip to the Doomsday device on “Fringe” (8 p.m., Fox).

• Poison on the runway on “Blue Bloods” (9 p.m., CBS).

• Heavy rains bring floods and complications on “American Loggers” (9 p.m., Discovery).

• Joseph Fiennes (“Shakespeare in Love”) portrays Merlin in “Camelot” (9 p.m., Starz).