I really really really really hate intro music and think it's the biggest cheese going however it can be done with a bit of style.
We have 2 local bands who come on to intro music but the thing is the intro lasts about 5 minutes so they stand there waiting for that long chatting to each other and then when the intro finishes they still all look at each other before kicking in - pointless.
So pick your music that lasts no longer than 1 minute
When it starts walk straight on and get ready
Perhaps have a nice deep voice on the intro that says something like "Neoni's band"
Count of 4 and straight in
That may work
We've sorted it dude, its about 2 minutes and length and has a sweeping like effect at the end and as soon as it reaches the end, and the biggest build up happens BANG straight into born to be wild.