Redknapp wrote: “Remembering one of my most favourite nights with this special lady and some of my favourite people.
“So grateful for my friendships @littleblondebear @keithlemon. Always thinking of you.”
She also used a love heart emoji and the hashtag #BeKind in reference to a social media post where Flack had told fans: “In a world where you can be anything, be kind.”
Keith Lemon (Ian West/PA)
Lemon simply replied: “Ah lovely times.”
Flack was found dead at her east London home earlier this month, having taken her own life aged 40.
A host of celebrities including Lemon, current Love Island host Laura Whitmore, rugby player Danny Cipriani and Harry Styles have paid tribute to Flack since her death.
Louise Redknapp remembers ‘special lady’ Caroline Flack in throwback post