Interesting tour facts:

-To everyone's surprise Madonna continued her Sticky & Sweet Tour in 2009
-Madonna switched three songs in the setlist, Heartbeat, Borderline and Hung Up were removed from the setlist and instead Holiday/MJ tribute, Dress You Up and a dance mix to Frozen/Open your Heart was performed
-Madonna played in the O2 in London a few days before Michael Jackson originally was to make his comeback for his This Is It 50 dates tour. Unfortunately the legend passed away on June 25 2009, and so Madonna paid hommage to him during Holiday. A dancer dressed up as Michael imitated him on stage. There were more Michael references during the show such as a glitter glove during Give it 2 Me, a sentence from Man in The Mirror on the screens and Don't Stop Till You Get Enough being played after the show
-Het tourboek received a new front cover and included four extra pages of live pictures from the 2008 show
-There were some technical difficulties during the tour, that unfortunately caused minor accidents with people attending as well. In Marseille the show was cancelled as the stage collapsed people were wounded and unfortunately some died.

-It was Madonna's first ever time to perform in Belgium and even though Frozen is forbidden there, she still went and performed it

-She also caused quite a stir in the media by faking fainting on stage during the MJ tribute in Holiday. What the media (and most people) didn't realize was that the fainting was part of the fact, a reaction to 'seeing' Michael Jackson