Kate Garraway was due back at her day job at Good Morning Britain on Thursday after coming fourth in I'm A Celebrity.
But her return to Good Morning Britain didn't go to plan after she accidentally overslept.
Ranvir Singh had to step in for her at the last minute, joining Ben Shephard.
Garraway told her Instagram followers she hoped she would not get "fired" for the "disaster".
She wrote: "Overslept on my first morning back at work on Good Morning Britain.
"Fell asleep last night fully made-up with clothes on and contacts in - didn't set alarm."
Posting a selfie with make-up from the previous night still on, she added: "Woke up looking like this!!!??!!!."
In a video link to the show, she said: "I've still got my shoes on! I fell asleep and the next thing I know it was 20 minutes ago."
She quipped the mistake could be "karma" following a conversation she had in the jungle with fellow celebrities Adele Roberts and Roman Kemp.
"I was so smug and said I'd never overslept and missed a show because I get up so early that even if I've overslept it's still only 3.15am."
Shephard joked: "You've had one sniff of primetime and this is what happens."
Singh, Good Morning Britain's political editor, told viewers she received a text message at 3.26am from the show's editor.
"I got a text message this morning, just shortly after my alarm went off because I'm usually outside in the dark and the rain."
Garraway later explained she had fallen asleep with one of her children, who was off school and unwell.
She later had to tell husband Derek Draper she was live on air after he walked out of their bedroom - although not on camera - naked.
