Several of Peacock's songs have been featured in films, commercials, and television. "Leading With My Heart" was featured on the soundtrack for the film Win a Date with Tad Hamilton!. Her song "Sunflower" was featured in the film Because of Winn-Dixie and was released on her album Who I Am. "Bliss" was featured in clothing ads for J. Jill, and in Hershey's commercials, and is included on her self-titled album. The Beginning was featured in the 2006 series finale of What I Like About You.
She has been on the Board of Governors for the Chicago Chapter of The Recording Academy (GRAMMYS), Chapter President and a National Trustee. She currently serves on the Nashville Board of the Recording Academy. She attended Lawrence University, graduating in 1992. The university honored her with its Lucia Russell Briggs Distinguished Achievement Award.