Before he went, Carragher and Stewart performed a duet of Maggie May, while Stewart's son, Alastair, also appeared to complete the father-son duo.
Stewart burst into a little dance to show he still has Hot Legs following a prompt by Carragher before he said he was being interviewed by Gordon Banks, admitting he was only joking as he started laughing.
Carragher then asked whether he could come and join him for a few if Celtic make it though, to which Stewart replied: "Of course you can I'll fly you anywhere you want.".
SIR ROD STEWART stole the show at Celtic Park for the Scottish giant's Champions League clash with Bayern Munich last night.
For a moment Stewart seemed to be sailing back to sobriety as he explained how Celtic could make it through if they did not make any "cock ups".
