Poison vocalist Bret Michaels has stated the inpatient withdrawal that prompted the group to pull out from a concert in Nashville on Thursday. “To the incredible fans in Nashville, Thank you for all your well wishes!!” Michaels posted his Instagram profile. “I was truly fired up to get on stage in the music city and perform, but due to an unknown complication & following hospitalization, it was not possible. I send my deepest apologies for being unable to rock the stage tonight!!! I’m working on being back 100 % very soon & hope you rocked hard with my friends Motley & Joe! /Leppard/Joan and Classless Act!!! View this post on Instagram. A post shared by Bret Michaels Official (@ bretmichaelsofficial) Poison was due to perform at Nashville’s Nissan stadium on Thursday alongside Def Leppard, Motley Cr ü e and Joan Jett at The Nashville stop of their The Stadium Tour. The tour was due to kick off in 2020 but was postponed to 2021 and again to this year, due to COVID-19. It will begin on June 16 in Atlanta and will conclude Sept. 9. In Las Vegas. It is an extensive tour across North America, featuring 36 concerts. The next concert is in Jacksonville on July 2. Michaels, 59, has had health issues in the past. In 2010, He had a hemorrhage, which requires a procedure, later the same year he underwent surgery to repair a hole in his heart. Poison has sold more than 50 million albums worldwide, including 15 million in the U. S. S. The band has also had 10 singles in The Top 40 of The Billboard Hot 100, including six Top 10 singles and the number one single” Every Rose Has Its Horn. “In 1998, Michaels, Written by the author, produced, directed and starred in crime drama film” A Letter from Death Row, “which also featured Martin Sheen.