Carrie Underwood was "reserved" and "distant" but she remained "polite" to the American Idol crew following her much-discussed performance at Donald Trump's inauguration in January, a source has claimed.

Country music star Carrie Underwood is set to return to American Idol. However, this time she will one of the judges on the talent show.

American Idol celebrated Carrie Underwood's birthday with a throwback flick as fans are all saying the same thing.