Singer Janet Jackson is postponing her Unbreakable tour so that she can undergo surgery.
The 49-year-old posted a message on her website and social media sites announcing that all future tour dates had been postponed until the spring. No new dates were announced.
The singer's statement asked for prayers of support and said no further details on her medical condition would be disclosed.
Jackson had been next scheduled to perform on January 9 in Denver, Colorado.
Her Unbreakable tour has been the Top 20 global concert tour listing compiled by Pollstar.
Jackson's catalogue of hits dates back to the mid-1980s, ranging from What Have You Done For Me Lately to That's The Way Love Goes and All For You.