Saturdays star Frankie checked herself into a treatment facility last year, however the singer has only just revealed the reason for her stay.

The 22-year-old singer had been noticeably absent from the group's promotional duties and told Glamour magazine that she was suffering from a bout of depression.

There have been an influx of stars entering rehab over the past few months; find out which other troubled celebrities are facing their problems head-on now...