I have noticed for some concerts/festivals that some bands (apparently, mostly EDM/DJs) will have "live" listed with their name on a line-up. For example:
Check out Matador on this line-up for the Sun City Music Festival (2nd line form the bottom, listed as Matador live)
There are a couple more examples on this line-up for Ultra Music festival (Thomas Jack and Fakear in the support section).
As far as I can tell "live" is clearly not a part of the actual band name.
I know DJs and EDM artists aren't exactly playing traditional instruments like other genres of music (cue the "they just push play on their laptop" comments), but if that were the reason for the "live" in the line-up (mixing live vs. playing a prerecorded set) I would imagine there would be at least a few more "live" bands listed. I could be very wrong however.
So, how does a band listed as "live" on a line-up differ from the others? Isn't everyone there "live" in person?