Mum-of-three Sam pretended to pull a pint as she stood in the pub, which is set in the fictional town of Weatherfield.
Sam earlier told fans on Twitter that she was heading down to Manchester to hang out with her "good mate" Hayley Tamaddon, and it turns out she ended up having a little tour of the set too.
Former Emmerdale actress Hayley currently stars in Corrie as Andrea Beckett. After posting a photo Twitter, she said: "Me and @SamBaileyREAL she's having a tour of the street!"
Sam, who won series 10 of The X Factor in 2003, was all smiles as she took a selfie with Hayley on the cobbles, and it looks like she wouldn't mind making a return too!
The 'Skyscraper' singer joked on Twitter: "Had a great day @itvcorrie x think I should get a cheeky extras role next time."
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Watch Sam's video for 'Skyscraper' below: