Susan Boyle

Susan Boyle is taking a night off!

The singer, who just recently checked out of The Priory mental clinic in London, has decided not to perform at tonight's Britain's Got Talent tour stop in Manchester!

Reps for the tour say Boyle is taking a "one off rest day," nothing to be alarmed about.

But is she well enough to make it through the entire tour???

Maybe SuBo should take it easy!