Janet Jackson's Rehearsals for World Tour Interrupted After Joe Jackson's Stroke

While her recently announced world tour will go on, Janet Jackson’s rehearsal schedule has been interrupted following her father Joe Jackson’s stroke, PEOPLE has learned.

The patriarch of the Jackson family suffered a stroke while celebrating his 87th birthday in Brazil on Saturday – and PEOPLE can confirm that his daughter was quick to put her rehearsals on hold to be by his side.

Joe Jackson Hospitalized in Brazil After Suffering Stroke on His 87th Birthday

Joe Jackson, the father of Michael Jackson and Janet Jackson, was admitted to a Brazilian hospital after suffering a stroke on his 87th birthday Saturday.

Joe Jackson Suffers Mild Stroke

Joe Jackson is in the hospital, recovering from a stroke.

Michael Jackson’s father, 84, fell ill at around 10 p.m. on Wednesday at his home in Las Vegas, a source tells PEOPLE, explaining, “He was sitting down and then found he couldn’t stand up. When he finally was able to, he found himself without balance and falling into the walls.”

Dad: Michael Jackson to Be Buried on His Birthday

Joseph Jackson says his son Michael will be finally laid to rest on Aug. 29, on what would have been the King of Pop’s 51st birthday.