OK, on the heels of the (unconfirmed) postponement of the (unconfirmed) 2009 South American Tour, our sources tell us that ZZ Top may be doing yet another European tour (weak dollar--let's go to Europe!) in the Summer of 2010. A London festival date is already rumored, who knows what else will be out there.
So the year for ZZ could look something like this:
March 2010--South America (rumored Sao Paulo [March 10, 2010])
July 2010--Europe (rumored London [July 24. 2010])
August 2010--USA (confirmed for Sturgis [August 9, 2010] and Wisconsin Dells [August 7, 2010])