Hi Gorda, great to "see" you back. I think Mark was not in those tours

I have the great book, "Rolling Stones - Images of the World Tour 1989 - 1990" and at the end there are three lists of Tour personnel for the American, European and Japanese legs of the tours and Mark Kerr is not listed, the lists are big with full detail of duties of each one, including roadies.

Where did you see that Mark Kerr was a roadie?

Fine tune your math Gorda and probably someone will help. I don't have tour personnel lists of the previous (1981-1982) and next tour (1994-1995)

Anyway, is a big difference between tours so it is probaly fake. Other option is that he was a member of a local crew, the Stones some times hire contratists for some jobs, and they are local people

His Smashing Machine days over, Mark Kerr reflects on then and now
Former UFC heavyweight champion Mark Kerr reflects on his career and his future
Josh Gross | May 21, 2015

Kerr dialed United Production Services, which won the contract to set up the Rolling Stones’ mammoth North American Steel Wheels tour. Sixty dates in 33 cities in just over four months. He negotiated the going rate ($800 a week plus $210 per diem) and the next day flew from Detroit to Philadelphia. Before Kerr was handed schematics for the downstage right staircase, the crew boss at Veterans Stadium explained the youngest would-be roadie on the tour had three shows to prove himself.

“Philadelphia is all union,” Kerr said. “All of a sudden I’ve got 20 guys behind me. I’m 20 years old and I’m trying to build something I’ve never seen before.”

On opening night, Aug. 31, 1989, Mick Jagger stepped into “Shattered,” the Stones’ third song of the set, and a generator blew. Jagger kept The Vet calm by speaking to the crowd. Behind the scenes it “was absolutely crazy,” Kerr said. “The Rolling Stones with 40,000 fans and no power? Everyone was pointing fingers.” He made the cut and from August to December joined a massive production that crisscrossed multiple sets around North America’s largest arenas.

Because it was football season, Saturday night concerts often had to be Sunday morning memories. Condensed-ins and condensed-outs, essentially rush jobs, were particularly intense.
The pressure to build and disassemble stages prompted the tour’s senior management to use drugs to amp up the crew’s work rate, Kerr said.

"You'd have a production trailer and you'd get a boss calling you on the mic, time for lunch,” Kerr said. “You'd come in, they'd pull a drawer open, there'd be a pile of cocaine. I was told to take what I need, but I had to have a job done by this hour.