Carrie Underwood releases new single

Underwood said of the new single, "'So Small' is a feeling song on how people invest so much of their time and energy into things that aren't really important. And you don't really realize that until it's too late."

"And we're all guilty of it, as I know I am, of just letting silly things get in the way. The smallest thing can almost ruin my day, and at some point I realize, 'Good gracious, Carrie! What are you doing?' I have a great life, and we need to remember the things that are truly important."

After co-writing one song on her 6-million-selling 19 Recordings/Arista Records/Arista Nashville debut disc, "Some Hearts," "So Small" marks the first of several Underwood co-writes to be included on her upcoming album.

Underwood's to-be-titled new disc reunites her with producer Mark Bright, who helmed seven tracks on "Some Hearts."