REBA AND KELLY CLARKSON8 p.m., Alltel Arena. $49.50-$59.50.
After three decades in country music and seven years as a TV star, Reba's
famous enough she doesn't need McEntire anymore. She's just plain Reba. Kelly Clarkson
, arguably the most talented among the “American Idol” alumni, isn't anywhere near one-name status, but then again, she's only 26, and she's already got two multi-platinum albums and two Grammys under her belt. The oddball pair, united by representation (McEntire's husband, Narvel Blackstock), first debuted together on an episode of “CMT Crossroads” last year and later in the year had a hit single with a reworking of Clarkson's “Because of You” on the album “Reba: Duets.” Now, on the “2 Worlds, 2 Voices Tour,” they're performing together onstage, each supporting the other on her songs. Hearing Reba belt out “Since U Been Gone” should be worth the price of admission alone.