The Girls Aloud star was pictured pulling a pint in the Rovers Return and hanging out in Audrey's hair salon on Monday (17 February).
Kimberley, 32, teased fans with photos on Twitter and Instagram, asking them to guess where she was - and it didn't take long for them to get it right!
The singer looked chic during her tour of the cobbles and she also bumped into long time friend, Corrie star Samia Ghadie.
Taking to Twitter, Samia said: "@KimberleyJWalsh was so lovely catching up with u today! What a surprise that was!!! #blastfromthepast Xx."
Kimberley replied: "@realsamia so lovely to see you too you haven't changed a bit! Sorry to give you such a shock ha. #memories #blastfromthepast."
On Sunday, Kimberley said that she was "on another little road trip up north", but who knows if her excursion to the Corrie set was more than just a passing visit?!
It was just last December that Kimberley's best friend and former Girls Aloud star Cheryl Cole actually filmed scenes in the Rovers Return with Michelle Keegan, who plays fiesty barmaid Tina McIntyre.
Will Kimbers be making an appearance in the soap too?!
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