Janet Jackson's grand comeback tour, Unbreakable, is being put on hold due to vocal rest. Jackson tweeted the news to her followers on Friday night. 

The "No Sleep" singer is getting some rest and rescheduling her Salt Lake City and Denver performances set for Oct. 24-25 respectively. Jackson tweeted: "Hey you guys, I must rest my vocal chords. Doctor's orders... Will be rescheduling Salt Lake City and Denver. Keep your tickets! Back to Burn Up Kansas City. Gon B Alright. #Unbreakable."

This is the 49-year-old singer's first tour since 2011. Jackson's latest album, Unbreakable, recently topped the Billboard 200 chart, making her the third act to earn No. 1 albums in each of the last four decades.