question.

[kalinn]

....

The bands "Rocket to the Moon" and "Hanson" play for about 20 minutes each.
The band "Halvo" plays for about 4 hours.

 

[Caius]

Honestly it's a wildcard. i'd go just for the hell of it.

 

[Psychonaut]

if it's your favorite band, why would the other band matter?

and as it's been said already, opening acts usually don't stay for very long, but I dunno what special guest means :/ though it's probably just going to be someone who joins for a very special x amount of songs, where x is <7 or so.