How Jason Sherwood made the pop star’s variety special feel both timeless and modern: “This needs to feel like Marilyn Monroe in 'Gentleman Prefer Blondes.' It needs to feel like Busby Berkeley. It needs to feel like 'White Christmas.

Designer Jason Sherwood walks through the countless references in “A Nonsense Christmas,” from Marilyn Monroe to Judy Garland. Pop star Sabrina Carpenter’s A Nonsense Christmas is certainly a holiday special of our time.

Sabrina Carpenter puts a spin on the holiday Christmas special influenced by some of the most iconic sitcoms and films.