Barney looks more nervous than excited here, doesn't he? It's a legendary wedding day.

It's labor time for Lily! She has her baby on the season finale of How I Met Your Mother.

This is what friends are for: Barney takes Marshall on a road trip prior to his child being born.

Barney drags Ted out on the town every night as Ted gets used to living in his new apartment alone on this episode of How I Met Your Mother. "Now We're Even" is the 21st installment of season 7.

Oh, Barney. He makes a critical mistake on the episode "Trilogy Time, resulting in this reaction from his girlfriend.

Barney is dressed like Julius Caesar here. He's also taking on ninjas.

Barney likes what he sees in this photo, as he learns that Quinn works as a stripper.

Whoa, whoa, whoa. What's going on here?!? This is a look at the How I Met Your Mother episode "No Pressure."

Well, this is awkward... and hilarious. Barney is in bed with Lily and Marshall.

Martin Short is back on How I Met Your Mother. Much to the chagrin of Ted in this scene.

Look out! This is just one example of a housewarming party gone horribly awry.

Naked Barney and Becki Newton alert! This is a shot from "The Drunk Train," which marks the latter's debut on How I Met Your Mother.