I've been a little bit of all of them (except the groupie) when the spirit moves me & I find it moving me again lately a bit. I've been a booking agent (for myself and for a few others here...for no money...the others that is...even tho most have been apreciative enough to throw something my way). I've been a performer...again when the spirit moves me & it seems to be slightly moving me again lately.....I've been a DJ....but only when the money is good (($500+ for a couple of hours) or when I am moved by a certain charitable event (free or close to free).
I have been a promoter ...and a very good one...again when I am personally moved by the people/situation.
There is one woman here in town that is very very talented (& I mean Nationally Talented level) who is cute as the dickens, who I have a nice warm aquaintenenceship with who I wouldn't mind being a groupie of ....LOL. Actually she plays all over the area and in 3 years I've only caught a part of her show 2x and enjoyed it. I'm not sure if that makes me a groupie (acording to your definition) but I like her music and her persona, & when I have free time (which is rare) & I'm in the area I like to pop in and am always welcomed warmly.
My comments ("kiddies kiddies etc") were made sort of toungue in cheek since I know a little background....I may b down here but not completely out of the loop.....and my question was toungue in cheek/rhetorical.

You know me...I gravitate towards the "real job" arena and usually play only when I anticipate lots of fun or lots of money or a combo of both.