Rochelle, who is co-host of The Xtra Factor, has spoken about the mistake over the weekend, where Olly told Monica Michael that she would be going home before reading out the results from the public vote.
"My heart broke for Olly Murs after his slip up on Sunday's show," Rochelle said in her diary for The Sun. "He felt really bad afterwards.
"It is live television and he made a genuine mistake and there is not much you can do. As soon as it was done it was over. He came on The Xtra Factor straight after and he apologised again. It is live TV, you didn't mean it!"
Just about everyone has had their say on Olly's slip up, including X Factor viewers who aired their thoughts via Twitter, and eliminated act Monica herself.
While Olly said he was "still learning" as a presenter, he admitted he was still "beating" himself up over it. But former host of the show Dermot O'Leary had encouraging words for him: "Hey @ollyofficial Ahoy my friend. Keep that head up. Happens to us all."
Rochelle also revealed that the show's boss and head judge Simon Cowell had a slip of his own on The Xtra Factor as he accidentally revealed this weekend's theme. Oops.
"Simon also blurted out this week's theme which is heartbreak on The Xtra Factor," she said. "But it was supposed to be a secret and something we reveal on our Thursday show! He knew he had let the cat out of the bag."
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