The singer has given up alcohol and is hitting the gym in an attempt to slim down after signing with top modelling agency Assets, reports Herald.ie.
Michelle, who is currently living in Ireland with advertising executive Hugh Hanley, said: "Yes, I've joined up with them. They have so many girls on their books, but they have got me a couple of gigs."
Michelle and Hugh have been dating for six months. The 28-year-old previously said that she is looking forward to the new year and putting her marriage split with Andy Scott-Lee behind her.
