While Carrie Underwood is often ... Isaiah and Jacob have gone on tour with Underwood, and a 5-year-old Isaiah even duetted with his mom on "The Little Drummer Boy" — they're just starting ...

Carrie Underwood may pack her schedule with plenty ... lending his voice for "Little Drummer Boy" for Carrie's Christmas album, My Gift. Carrie and Mike became parents all over again in January ...