According to Just Jared, Joe Jackson has reportedly suffered a stroke on his 87th birthday while vacationing on Sunday (July 26) in Sao Paulo, Brazil. The Jackson family patriarch apparently woke up feeling dizzy and being unable to see, TMZ reports. He was admitted to Albert Einstein Hospital and tests are being performed to see if he should be flown back to the the States. Joe is in town for a birthday that was being thrown for him. Hours before, Joe‘s daughter Janet wrote her dad a sweet message on Twitter. “Wishing my Father, @Joe5Jackson a Happy Birthday. I want to tell the world, I love and honor you,” she wrote.