Following today's report by Attitude magazine about the titles of new Madonna tracks, we have heard the buzz that there isn't actually a song titled "I'm Sorry" but that's just something Madonna says in the song that is at the moment called "Broken".
The other new song by Oakenfold has been correctly reported as being titled "Celebrate" but it is not a rework of the classic "Holiday".
It is indeed a new party song. But we heard that "Celebrate" and "Holiday" will be indeed mashed together along with "Everybody" in a brand new number of the Sticky And Sweet tour debuting in London on July 4th.
This medley is supposed to replace "Heartbeat" in the setlist while a Rock version of "Dress You Up", as previously reported here, is rehearsed as a replacement of "Bordeline" in the show.

Source: MadonnaTribe