Ms. Underwood couldn't get any hotter. The first single from her highly anticipated sophomore album Carnival Ride is in the top tier of country radio. The single "So Small" cracks Billboard's Hot Country Singles Top 10 this week.

The song is also available for download via iTunes' music store starting today, Tuesday, August 27th. Click here to purchase the song (must have iTunes player).

Carnival Ride is set for an October 23rd release. "So Small" made history earlier this month as the highest debuting female single in country music history.