American Idol 'Idol' champ Carrie Underwood to appear on 'How I Met Your Mother' 01/06/2010 Carrie Underwood apparently enjoyed acting so much on her recent holiday special that she's decided to give it another go. Read More RELATED NEWS Carrie Underwood says post-'American Idol' body shaming led to strict dietCarrie Underwood praises husband Mike Fisher on anniversaryCarrie Underwood to host 2019 CMA Awards without Brad Paisley TAGS: American Idol Dancing with the Stars Stacy Keibler Carrie Underwood Josh Radnor How I Met Your Mother
