I am going to Mamma Mia "The Party" on Sunday at O2 Arena in London. I have absolutely no idea what to wear! It's basically the stage show/movie, in a Greek Taverna style setting with food and drink and an Abba Disco afterwards. Tickets were expensive! Has anyone else been and, if so, what did you/other people wear. I don't want to start getting fancy dress. I am a 55 old woman with an ok figure (size 10) but a bit of a tum and bingo wings. I was a teen in the 70s but have sadly binned all of my platform shoes and all other clothes which would have been perfect! Help, appreciate any responses.