(Iowa City, IA)  --  Portland's own "Portugal. The Man" is said to be doing OK after receiving a fiery welcome to Iowa City.  The Iowa City Fire Department says the band's tour bus caught fire outside the venue before their show Tuesday night.  Fire officials say no injuries were reported and no one was on the bus at the time of the fire.  The Daily Iowan reports the fire was caused by a problem in the vehicle's air conditioning system.  The band went on with the show at the Iowa Memorial Union and went on to play in Columbia, Missouri last night.