Jack Johnson was onboard one of my short sectors between Sydney and the Gold Coast - he was a very pleasant guy, smooth voice, beautiful tanned skin, and also had his wife/girlfriend with him as well as his cute little son.
Little did I know that this elderly American couple I was chatting to for a while in 1A and B, opposite my jumpseat at L1, were actually his mum and dad! I was asking them how their time in Australia was going so far and they said they'd actually just flown in from Honolulu but were looking forward to seeing the sights. My CM, sitting next to me, let me in on who they were after about 5 minutes. I thought it was quite nice of Jack to bring his family with him on his Aussie tour.