Sneak Peak: How I Met Your Mother

Britney Spears is back to the small screen. Here's a sneak peak of Britney Spears on "How I Met Your Mother" where she starts dating Barney (Neil Patrick Harris).

"I had such a great experience the last time I was on the show that I couldn't wait to come back," Spears said.

"Abby is going to have a lot of fun!"

Watch the clip below: