Her trainer, Ary Nunez, said: ''Rihanna trains as much as she can, whenever she can.
''This could be every day or three times a week. Her work schedule is extremely demanding, so thank goodness shes naturally a hard-working person.
"We make time and find time whether it is at 4am or 9am.''
According to her trainer, the 23-year-old beauty is even willing to work out while having her hair and make-up done.
''We always squeeze it in,'' Ary added.
While Rihanna works hard to maintain her toned physique, Ary believes she is naturally in good shape because it doesn't take long for her to look her best.
She told the new issue of Britain's Star magazine: Rihanna has a gifted physique. She can become lean, get baby guns (biceps) and firm up her core quickly.
Labels: rihanna work times