It will be difficult to pick a favorite in this Round 2 March Bandness matchup. Sugarland has had more recent hits, but Diamond Rio and their fans proved they're still very much top of mind by taking down Rascal Flatts in Round 1. Who should move on in this tournament to decide the best country band of all time?

Sugarland had their own battle in Round 1, fending off feisty Eli Young Band fans. The one-time CMA Vocal Group of the Year nominees are taking a break to let Jennifer Nettles be a mom, but their catalog of hits is as strong as any group's. Diamond Rio is just as strong, making this another Round 2 matchup of competing eras in country music.

Fans will decide who moves on in this round and every March Bandness round leading to the championship, which will be declared on April 8. This round ends on March 24 at 11:59PM ET. You can vote up to once every hour until then. The winner here will move on to face either Alabama or Lonestar.