in the past, Lollapalooza has strictly enforced its EXCULSIVITY CLAUSE
restricting bands from scheduling shows near the date and area of the festival
(and this is a quote and link directly from a Chicago Tribune article about it from 2010)
http://leisureblogs.chicagotribune.com/turn_it_up/2010/06/lollapalooza-one-of-many-festivals-with-exclusivity-clauses.htmlLollapalooza:
Unless artist or agent thereof receives express written
consent executed by a representative of C3, Artist will decline any
performance engagement from 180 days before Lollapalooza to 90 days
following Lollapalooza within a 300-mile radius of Lollapalooza. This
radius clause also includes any performances (public or private) in
Chicago the weekend of Aug 6-8, 2010. Artist will not announce ANY
Lollapalooza performance until Lollapalooza has publicized its schedule.
and, looking over the shoulder of someone on Facebook about this earlier today
the people on the Black Sabbath page are NOT HAPPY about this news