Hi Ash,
It's a kind of magic is a nice song to start with.
The title is saying what is going to follow.

I don't know all these songs of cource to make a playlist,
but you could take an idea from their live perfpmances on youtube or from a "best of" cd.
They don't put the songs in accidental order in both cases.
In my opinion is good to start with a well known song and to end up with at least with two famous songs.(ok! ok! the last one must be "we are the champions"

)
They say that is what people remember better afterwards.
No more than two slow piece's in a row and in that case the second one must be really really nice.
Just some thoughts by me.
There people here that they are gigging and can give you much better advices from their experience.