With the How I Met Your Mother Season 9 finale scheduled for March 31, all main cast members appeared on The Late Show with David Letterman on Monday.
And - SPOILER ALERT!!! - they ran down a Top 10 List of the surprises you can expect to take place on the series-ender.
Note to MacLarens: Enjoy being a bar while you can! Watch now:
You can also watch How I Met Your Mother online at TV Fanatic and you can check out photos from the next all-new episode here:
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