Emma Willis and Dermot O'Leary will also be joining in the fun on Big Brother: Best Shows Ever.
From Jackie Stallone's entrance to Makosi's "pregnancy", get ready for a serious hit of reality TV nostalgia.
She and former Celebrity Big Brother winner Rylan Clark-Neal will "dissect" classic moments in a new E4 series.
Peter Kay, Catherine Tate and a special Live Lounge performance are all among the highlights of the evening.
The Masked Singer judge quit drugs for good after attending Narcotics Anonymous meetings.
"She'd become the most hated girl in Britain," Davina recalls in a new Channel 4 documentary, 10 years after Jade's death from cervical cancer.
The presenter says there were "no boundaries" during her visits to her mum.
From Kilimanjaro To Davina McCall's 500-Mile Triathlon: Meet The Man Who Trains Celebs For Comic Relief
"The one thing I can't build into them is experience."
Including the surprise reason the show was saved from the TV scrapheap.
"I know it’s going to be hard tonight but I’m sending you all so much love."