On the singer's Web site Thursday, it was announced that he's suffered a serious medical setback. Michaels had a Transient Ischemic Attack, otherwise known as a "warning stroke."
"Bret Michaels was readmitted to the hospital this week after suffering numbness on the left side of his body, predominately his face and hands which doctors described as a Transient Ischemic Attack (TIA) or warning stroke," according to the singer's Web site.
Doctors also found a hole in his heart after running tests, which his physician said was probably unrelated to last month's brain hemorrhage.
Michaels' publicist, Joann Mignano, says he is "in good spirits, great medical hands and is positive and hopeful that everything is going to be OK."
It was unclear when the 47-year-old singer was hospitalized for his stroke.
Michaels had hoped to attend the "Celebrity Apprentice" finale on May 23 and planned to return to tour with side group the Bret Michaels Band on May 28.
Since his brain hemorrhage, Michaels has since released a new single and his new album, "Custom Built", is scheduled to hit stores on June 8.