WATCH: Will Ferrell dresses as a leprechaun and warns us about the danger of snakes

Just when we thought we couldn’t love with Will Ferrell any more than we already do, he dresses up as a leprechaun and warns us about the danger of snakes.

Ferrell, who has Irish ancestry, decided to dress up as a leprechaun on David Letterman yesterday and sing his own re-written version of Danny Boy.

Be prepared, it gets emotional.

And just to help brush off those post Paddy’s Day blues,

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