The 43-year-old ITV presenter is the next celebrity to be revealed as part of the Strictly lineup, and her GMB co-stars were ecstatic for her.
They made the announcement on the show after telling viewers "somebody in the GMB studio" is on the BBC show's lineup.
As Susanna Reid and Richard Arnold had already taken part, it was between Ranvir, Piers Morgan, Laura Tobin, Dr Hilary Jones.
Entertainment reporter Richard shared the news himself after giving viewers the lowdown on those taking part so far.
The show then revealed the news and an explosion of firework sparklers surrounded Ranvir as she beamed towards the camera.
Piers asked her: "Have you danced?", to which Ranvir replied: "Only at weddings."
She continued: "'I'm very thrilled to be on it."
Referring to her early starts on GMB, she continued: "I'm worried about the sleep deprivation, I'm worried about energy levels."
Fans were thrilled after hearing the exciting news, and rushed to Twitter to show Ranvir support and love.
One said: "Many congratulations to @ranvir01. I can't wait to see this."
While another wrote: "Aww Good luck @ranvir01 you'll be great!"
A third gushed: "Ranvir will be FAB! She comes across as someone who gives it her all, so I think she'll do well. Can imagine she will look amazing in all those glitzy dresses too. Good luck Ranvir!"
"Another amazing signing! Have an amazing Strictly experience Ranvir you will do amazingly well", penned another viewer.
The first three contestants were revealed on Tuesday, with actress Caroline Quentin, The Wanted's Max George and American football player Jason Bell being announced on The One Show.
Good Morning Britain airs weekdays at 6am on ITV.