Carrie Underwood, seen here at the 35th Annual People's Choice Awards on Jan. 7, 2009, in Los Angeles, has a 2005 "American Idol" win and subsequent country music career to smile about.
Keith Urban
Keith Urban arrives at the "American Idol" finale in Los Angeles, Wednesday, May 20, 2009. A white-hot country career, a new daughter and a movie-star wife (actress Nicole Kidman) are among the things that must make him smile.
Taylor Swift
Taylor Swift may have been down after Kanye West interrupted her VMA acceptance speech, but the country star couldn't stay sad for long. She made light of the situation when she hosted the Nov. 7 episode of "Saturday Night Live." Here, Swift poses in front of her star at Mohegan's "Walk of Fame" in Uncasville, Conn., Friday, Aug. 28, 2009.
Brad Paisley
Brad Paisley flashes an award-winner's smile as he holds up his trophy for top male vocalist at the 43rd Annual Academy Of Country Music Awards in Las Vegas on May 18, 2008.
Kenny Chesney
Kenny Chesney shows a grin as he answers questions in the press room at the 42nd Annual CMA Awards in Nashville, Tenn., on Wednesday, Nov. 12, 2008.
Faith Hill and Tim McGraw
Singers Tim McGraw and Faith Hill arrive at the 2008 CMT Awards, Monday, April 14, 2008, in Nashville, Tenn. Aside from their respective country careers, the two have their long marriage to smile about - they tied the knot in 1996 and have three daughters.
Garth Brooks
Garth Brooks smiles at a news conference in Nashville, Tenn., Thursday, Oct. 15, 2009. The country star announced he was coming out of retirement after nine years away from the music business, and will start a concert series in Las Vegas.
Trisha Yearwood
Then-President George W. Bush, right, shakes hands with singer Trisha Yearwood, left, as he leaves the stage after attending Ford's Theatre Gala at the National Theatre on Sunday, June 1, 2008, in Washington. The singer has a storied country career to grin about - along with her marriage to fellow singer Garth Brooks.
Sugarland
Kristian Bush, left, and Jennifer Nettles of the band Sugarland smile as they arrive at the 42nd Annual CMA Awards on Wednesday Nov. 12, 2008 in Nashville, Tenn.
LeAnn Rimes
LeAnn Rimes smiles as she arrives at the MTV Movie Awards on Sunday May 31, 2009, in Universal City, Calif.
George Strait
Singer George Strait celebrated a smile-worthy milestone - his 56th birthday - by performing his 56th No. 1 hit at the 43rd Annual Academy Of Country Music Awards.
Alison Krauss
Alison Krauss, center, smiles as she poses with Robert Plant, left, and T Bone Burnett as they hold their album of the year and best pop collaboration with vocals awards backstage at the 51st Annual Grammy Awards on Sunday, Feb. 8, 2009, in Los Angeles.
Reba McEntire
Singer and host Reba McEntire smiles as she arrives at the 44th Annual Academy of Country Music Awards in Las Vegas on Sunday, April 5, 2009.
Martina McBride
Martina McBride smiles as she arrives at the 44th Annual Academy of Country Music Awards in Las Vegas on Sunday, April 5, 2009.
Toby Keith
Toby Keith smiles as he arrives at the 2008 CMT Music Awards in Nashville, Tenn., on April 14, 2008.
Miranda Lambert
Miranda Lambert flashes a smile as she arrives at the 44th Annual Academy of Country Music Awards in Las Vegas on Sunday, April 5, 2009.
Brooks & Dunn
A star on the Hollywood Walk of Fame is certainly something to smile about - which is what Kix Brooks, left, and Ronnie Dunn, of the country music group Brooks & Dunn, do as they pose during ceremonies honoring them with a star on Monday, Aug. 4, 2008, in Los Angeles.
Rascal Flatts
Rascal Flatts members, from left, Jay DeMarcus, Gary LeVox, and Joe Don Rooney smile on stage at the 35th Annual People's Choice Awards on Wednesday, Jan. 7, 2009, in Los Angeles.
Lee Ann Womack
Lee Ann Womack flashes a grin as she arrives at the 42nd Annual CMA Awards on Wednesday Nov. 12, 2008, in Nashville, Tenn.
Big & Rich
Big Kenny, left, and John Rich, of the duo Big & Rich smile for photographers as they arrive for the 41st Academy of Country Music Awards on May 23, 2006, in Las Vegas.