I'm middle-aged so I had to google some of the music choices.
Mark, Pixie and Sunetra all have weak, wishy-washy music. Underwhelmed. I love Diamonds Are A Girl's Best Friend but not the messed with version.
Mack the Knife is great but, please, it's Bobby Darin or Louis Armstrong, not Robbie feckin' Williams.
I love Little Bitty Pretty One but worry it's not dynamic enough for a good jive. I've noticed on Strictly the better jives have the quickest beats.
I wouldn't have thought of What's New, Pussycat? for a VW but it could work in a Peter Sellers dancing with Capucine in a 1960s Mad Men kind of way.
I think Jake and Janette will suit The Macarena but I worry it's going to be the same old British bloke on the Costa Blanca schtick again. He seems to be swinging between moody and blokey and, while it works, I would like to see his repertoire pushed.
I like Let's Hear It for the Boy but it was underwhelming when Scott and Natalie danced to it and fear it could be again.