'BRAIN HACKER' Keith Barry was left fuming after a radio station cancelled a scheduled appearance in response for a stint on a rival broadcaster.
The magician said he drove to Cork from Dublin after less than three hours sleep only to be told by Redfm that his appearance was no longer required.
A bitter ratings battle has erupted between Redfm and their larger rivals, the UTV-owned 96fm.
Redfm poached 96fm's controversial morning show host Neil Prendeville and launched a high-profile Love/Hate advertising campaign last month to promote their new schedule.
But Barry said he will now warn his celebrity friends off the new show after the incident.
The Waterford star agreed to undertake a 480km round-trip yesterday to appear on talk shows on both 96fm and Redfm.
"I got home from the Olympia Theatre at 1am and worked up new demonstrations for both stations until 4.30am. I then left my house at 6.15am to be in Cork on time," he wrote on social media.
"I had an absolute blast on Cork's 96fm with PJ (Coogan). Then on to Redfm.
"Neil Prendeville, new to the station, refused to have me on because I had just been on 96fm.
"I thought it was a wind-up at first as they had asked for no exclusivity and actually asked me two days prior to develop new material to perform on his fellow DJ KC's (show) which took me hours to do."
Barry left the studio having failed to appear on air and drove back to Dublin to prepare for his ongoing show at the Olympia.
Prendeville could not be contacted for comment on the row last night.
The presenter was off the air for five months in 2010/2011 after controversy over a lewd act on a flight from London to Cork.
The father of two later said that his relationship with alcohol had become "reckless" and vowed to learn from his mistakes.