Like many of his contemporaries, singer-songwriter Brett Dennen uses television as the new radio. Songs from his first two albums — an eponymous 2004 debut and 2006’s So Much More — showed up in episodes of The Unit, Scrubs and Grey’s Anatomy. Dennen’s opening gigs for John Mayer, Colbie Caillat and Guster further raised his profile. His latest album, last year’s Hope for the Hopeless, was his highest-charting record, cracking the Top 50 and featuring cameos by Natalie Merchant and Afrobeat star Femi Kuti. He plays House of Blues (308 Euclid Ave., 216.523.2583, houseofblues.com) at 7:30 p.m., with Grace Potter & the Nocturnals opening. Tickets: $20-$25. — Baker
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