Has the RAH gig happened - in which case I guess MK didn’t take part?
Not the one related to the charity project, but the usual ones that happen every year in March for the charity with various artists.
As long as the charity project is not released yet, not even announced, there won't any live gig related to the project, if there is any. Depending on the release date of the record if there is a live gig could happen out of that usual period, or just wait until March 23.