cross-over music vids

Prepping for Christmas vid month, I ran across these. They aren't Chrismasy per se, but are listed as Christmas Wishes so I believe they were made as Christmas presents.

I'm not a Dr. Who fan, but I don like this crossover with Buffy:

"Warsan Shire - For Women Who Are Difficult To Love" (Watch on YouTube)

I don't watch either of these shows - I don't even know what LotS stands for - but I like the vid:

"Aaron, the Moor (Titus Andronicus)" (Watch on YouTube)