It was a fake charade rally! I respect Obama for not going! See http://www.independent.co.uk/news/world/europe/paris-march-tv-wide-shots-reveal-a-different-perspective-on-world-leaders-at-largest-demonstration-in-frances-history-9972895.html
It was a fake rally — no politician actually was there! See http://www.independent.co.uk/news/world/europe/paris-march-tv-wide-shots-reveal-a-different-perspective-on-world-leaders-at-largest-demonstration-in-frances-history-9972895.html
Sorry, being a non-native English speaker, I don’t get the joke. What was she changing in that song?