Bluegrass icon Dan Tyminski releases his second solo album today. 'Wheels' is the follow up to his critically-acclaimed 2000 release, 'Carry Me Across the Mountain.'

Tyminski, a 13-time Grammy winner, is perhaps best known as the guitarist and supporting singer for Alison Krauss and Union Station. He was also the singing voice of George Clooney in the movie, 'O Brother, Where Art Thou?' -- singing the song, 'I Am a Man of Constant Sorrow.' Tyminski has also recorded with an eclectic group of music superstars, including Dolly Parton, Brad Paisley, Rob Thomas, Reba McEntire and Joan Osborne, among others.

'Wheels' puts Tyminski at the helm of another all-star list of musicians. The album includes guest appearances by Ron Block, Cheryl and Sharon White and Vince Gill. You can listen to the entire album, track by track here.

Montgomery Gentry have the fastest rising single of their career with 'Back When I Knew It All.' Now, they're hoping the CD of the same name will grant them similar success. The duo's sixth studio album hits store shelves today. It's an album they say has a little rock 'n' roll inspiration.

"We were down in Ardent Studio [in Memphis], where a bunch of legendary rock acts recorded," says Troy Gentry. "We wanted to do something different."

"It just really had that great groove," adds Eddie Montgomery. "When you go in and you see where Zeppelin recorded, Bob Dylan and B.B. King. Man, the vibe. I don't know if you believe in ghosts or not, but I felt that the ghosts were in the room when you were singing and playing. So it was really cool."

The CD features two special guests on vocals: Toby Keith on 'I Pick My Parties' and Five For Fighting's John Ondrasik on 'Roll With Me.' Listen to Montgomery Gentry's full 'Back When I Knew It All' album, track-by-track, here.

James Otto is the voice behind the Atlanta Braves' new theme song. 'The Braves Play Here,' sung by the soulful country crooner, is now being played in television spots promoting the upcoming baseball season. It even incorporates the famous Braves chant heard at Atlanta's Turner Field. Click here to listen to the song.

Otto, pictured above with some of the Braves cheerleaders, releases his debut album, 'Sunset Man,' tomorrow. The CD's eleven tracks were co-produced by Big & Rich's John Rich, Rascal Flatts' Jay DeMarcus and by Otto himself. The album's first single, 'Just Got Started Lovin' You,' is already at No. 4 on the country singles charts. You can listen to the entire album, track-by-track in our listening party.

Just in time for his 75th birthday, Willie Nelson has compiled a box-set of greatest hits spanning his illustrious career. The legendary singer-songwriter releases 'One Hell of a Ride' this week. The four-disc set includes signature songs like 'On the Road Again,' 'Good Hearted Woman,' 'Blue Eyes Crying in the Rain,' 'Whiskey River,' 'Crazy' and 95 other songs that commemorate Nelson's musical journey.

You can listen to a 13-song sampling of 'One Hell of a Ride' here.

Also hitting store shelves this week is 'American Idol' alum Josh Gracin's sophomore album, 'We Weren't Crazy.' Gracin wrote three songs on the album, including the title track.

"This album is more me," he says. "I was able to focus on making the album I wanted to make. For the first album, I was still in the service, so I had to fly in and out of Nashville to record when I could. This time around, it had my undivided attention."

You can hear 'We Weren't Crazy,' track-by-track here.