The `Behind Closed Doors` singer was in the Irish capital to appear on a talk show and after filming her went to a local pub, where he got behind the bar and started serving customers.
He recalled: "I went out in Dublin until 3am after filming `The Saturday Night Show` over there. It was honestly the funniest night ever. We went to a pub called Paddy Cullen`s and I bought a round for about 20 people. I even got behind the bar at one point to serve people. Then they had a live musician and, when he started singing `Blue Suede Shoes`, I got up and joined in. To all the lovely people I met in Paddy Cullen`s, I just want to say `McSweeney Rave.` They`ll know what I mean!"
The night before Peter - who has two children, Junior, six, and four-year-old Princess Tiaamii, with ex-wife Katie Price, as well as helping raise her nine-year-old son Harvey from a previous relationship - went to the Sugar Hut in Essex where he narrowly missed bumping into Pamela Anderson.
Writing in his column for new! magazine, Peter said: "I went to Sugar Hut in Essex to support my brother Mikey who was DJing there. I got there after midnight as I`d been
filming `Lemonaid` with Keith Lemon, but I still had time for a few drinks. It`s absolutely crazy in the place, I love it. Apparently, I just missed Pamela Anderson as she`d just left but I wasn`t too bothered."