This is a scene from the 3/1/10 episode of How I Met Your Mother. It's titled "Hooked."
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Ted offers his date a drink in this scene. She's played, as you can tell, by Carrie Underwood.
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Yes, that's Carrie Underwood on How I Met Your Mother. She plays a character named Tiffany on the 3/1/10 episode.
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You're a very lucky man, Ted Mosby. You get to snuggle up next to Carrie Underwood in this scene from How I Met Your Mother.
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Carrie Underwood stops by How I Met Your Mother in March 2010. She plays a beauty named Tiffany.
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Yes, that's Carrie Underwood. She guest stars on the episode "Hooked."
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How I Met Your Mother Season 5 Episode 16 Quotes

I don't want to loose you, big brown eyes.

Tiffany

Yes you can borrow my tea cup pig.

Barney