Kiss postponed their tour date in Salt Lake City because Gene Simmons had to fly to Los Angeles for a medical operation. According to TMZ, the operation took place on October 1 and removed kidney stones. The procedure was noninvasive and took a full hour. The catheters will be removed within a week and any remaining stones will be removed later. Simmons will have time before returning to the stage with the farewell tour. The next show takes place on November 16 in Australia. Kidney Stones Popularly known as kidney stone, this hardened formation can arise in the kidneys and clog up another point in the urinary canal. Because the ureter, the channel that carries urine to the bladder, is very narrow, the particle becomes stuck. As a result of the expulsion attempt, the intense pain arises. Next Kiss tour dates Nov 16 RAC ARENA Perth, WA Nov 19 ENTERTAINMENT CENTRE Adelaide, SA Nov 21 ROD LAVER ARENA Melbourne, VIC Nov 22 ROD LAVER ARENA Melbourne, VIC Nov 23 SUPERCARS NEWCASTLE 500 Newcastle, NSW Nov 26 QUDOS BANK ARENA Sydney, NSW Nov 28 BRISBANE ENTERTAINMENT CENTRE QLD Brisbane, QLD Nov 30 ROD LAVER ARENA Melbourne, VIC Dec 3 SPARK ARENA Auckland, NZ Dec 8 XEBIO ARENA SENDAI Sendai, JAP Dec 11 TOKYO DOME Tokyo, JAP Dec 14 MORIOKA SHI ICE ARENA Morioka, JAP Dec 17 OSAKA DOME Osaka, JAP Dec 19 NAGOYA AICHIKEN GYMNASIUM Nagoya, JAP Mar 4 STAPLES CENTER Los Angeles, CA Mar 6 ORACLE ARENA Oakland, CA May 9 CAMPO ARGENTINO DE POLO Buenos Aires, Argentina Jun 12 DOWNLOAD FESTIVAL Derby, UK