Yes, Jo Jo Zep is definitely a pseudonym for Joe Camilleri - JJZ and the Falcons were really popular and when they broke up he continued to use the name. Wilbur Wilde was in Jo Jo Zep also. In fact Joe Camilleri features in a lot of places in Australian bands. For instance Pelaco Brothers, The Black Sorrows. But also he filled in on saxophone for Icehouse during the Sidewalk era. He's the everywhere man and still producing a lot of music. I remember thinking when Escapade was released that Tim had assembled a really great set of musicians. If they are on the live recording then it explains why it sounds so great.