Cheryl will appear in the ITV1 soap this week as a childhood friend of Michelle's character Tina McIntyre, in a special episode filmed for this year's Text Santa charity appeal.
"I was really excited when I found out that Cheryl Cole was going to be filming at Corrie," said Michelle. "She is someone I really admire and I have never met her properly so when I found out she was going to play Tina's friend I couldn't believe it.
In some newly-released pictures, Cheryl can be seen drinking with barmaid Tina in the famous Rovers Return pub.
"They say never meet your idols but she was amazing," Michelle continued. "She is such a huge Corrie fan and she was genuinely pleased to be filming with us.
"I sat and chatted with her for ages which was lovely. She didn't need any tips from us all though, she was really good, a natural," she added.
In the episode, Cheryl expects to be travelling home to Newcastle with Tina for her mum's Christmas party, but as we know in Corrie, nothing ever goes to plan!
Cheryl will also be appearing in the sketch alongside soap regulars, Steve (Simon Gregson), Michelle (Kym Marsh), and Kirk (Andy Whyment).
Michelle continued: "She [Cheryl] knew all her lines and she seemed to really enjoy herself. Malcolm Hebden who plays Norris made her laugh. She was great fun to have on set and I am really thrilled that Text Santa gave me the chance to work with her."
Speaking about the soap, 'Fight For This Love' singer Cheryl, said: "It has always been part of my life, we'd all watch it as kids every night. It's surreal to be part of something I've watched my whole life.
"It's great to be able to support six wonderful charities and I really hope that this year's appeal makes a difference to many lives."
For Text Santa's charity appeal, Michelle will also join her co-stars Samia Ghadie, Alison King and Charlie Condou to perform a rendition of The Pogues' hit 'Fairytale of New York'.
Michelle, who is engaged to former TOWIE hunk Mark Wright, is set to leave Corrie next year, when her character Tina will be killed off in an explosive exit.
Cheryl Cole comes to Weatherfield in a special sketch for Text Santa, which will be shown this Friday 20 December at 8pm on ITV.