Country singer Jo Dee Messina is facing another family crisis after her mother was hospitalised with pneumonia, just three months after undergoing life-saving open heart surgery. The 42-year-old star kept a bedside vigil for her mum Mary following the procedure in April (13), even rescheduling a number of shows in Canada the following month (May13) to stay close to her sick mother in America. Messina has now revealed her mother is facing a further health battle after contracting pneumonia. In a post on her Twitter.com page on Thursday night (11Jul13), she writes, "Another trip to the ER (emergency room). We were at special care facility. Now back in hospital. Mom has pneumonia. 3 mos (three months) 2day (today) since surgery."