Rick and Kate spent their first Christmas as a couple this season, and what better way to celebrate than with Mariah Carey? This amazing fan video — mostly centered around Castle Season 5, Episode 9: “Secret Santa" — is set to the pop diva’s classic holiday tune, “All I Want For Christmas Is You,” and shows off many adorable Caskett moments from this season. Check out it, and then sound off with your favorite tidbit in the comments!
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