Well, here are the song choices
GIRLS
Bella Penfold – In My Blood – Shawn Mendes
Molly Scott – Toxic – Britney Spears
Scarlett Lee – I Put a Spell on You – Annie Lennox (Iza version)
Shan Ako – The Sound of Silence – Simon and Garfunkel
GROUPS
Acacia and Aaliyah – Jump – Kriss Kross
Misunderstood – Thriller – Michael Jackson
United Vibe – Bleeding Love – Leona Lewis
OVERS
Danny Tetley – Who Wants to Live Forever - Queen
Giovanni Spano – Live and Let Die – Paul McCartney
BOYS
Anthony Russell – Demons – Imagine Dragon
Brendan Murray – Youngblood – 5 Seconds of Summer
Dalton Harris – Creep - Radiohead
So- Misunderstood get the MJ honours- and are about the only proper Hallowe'en-y song on there (apart from 'I out a spell on you').
How is the 'The Sound of Silence' scary? Or Kriss Kross, 'Jump'?? 
I will be cross if Dalton messes up 'Creep' - It's not going to be Wagner-esque, is it?
I will try to stay awake. I have had headache, and spent the afternoon asleep- feeling a bit better- but we will see
.