Michael, 58, took part in the show alongside his co-stars and celebrities from Love Island, Loose Women, Emmerdale and The Chase.
They took a rare break from their day jobs to form singing groups all for a very good cause – supporting ITV’s Britain Get Talking campaign.
And Michael – who plays Cobbles mechanic Kevin Webster – kicked off the show with a very honest admission.
As the Corrie cast rehearsed on the set of the Rovers Return Michael began to cry and had to step away and wipe his eyes.
He later said: “There was just something so powerful and emotional with us all doing it together.”
Sue Devaney, who plays his on screen sister Debbie Webster, asked him how he was feeling in a separate clip, and said: “How are you finding it so far?
“You got emotional at one point, didn’t you?”
Michael admitted he can feel overwhelmed with nerves when getting up on stage, and even on the set of Corrie.
He said: “I get anxious doing me proper job.
“You know, even after all these years, and so doing something like this that I’ve never done before. I did get nervous.”
Offering him some comfort, Sue replied: “I struggle with anxiety and I have done for years.
“I can talk to you about it, and I’m not ashamed about it. It’s part of who I am.”
The pair later performed a rendition of This Is Me in front of a panel of super judges including Black Eyed Peas star Will.I.Am, comic Jason Stamford, singer Alesha Dixon, and singer Adam Lambert.
Michael wasn’t the only one moved to tears on the night, as Alesha and Jason were also seen crying when Loose Women performed Bridge Over Troubled Water in memory of Brenda Edwards’ late son Jamal.