Also at the event was Neil’s Strictly dance partner Alex Scott, 35, as well as fellow 2019 contestant Dev Griffin, 35.
Professional dancer Karen Hauer, 37, was also at the bash, with her boyfriend David Webb.
Sharing a picture of himself with some of the Message In A Bottle cast, Neil urged his 231,000 followers to go and see the show.
He wrote: “Wow let’s talk about last night…. Message in a bottle is a new show created by @kateprincezoonation with the best dancers you will ever see.
Thank you for entertaining us @tommythefranzen @lizzie.gough and I can’t wait to post some new TikToks that I made with @jesskhanlee during the after party.”