Anastacia drinks so much water, she thinks she is like a ''camel''.
The 47-year-old singer made sure she had water at the top of her rider when she was globe-trotting around the world for her 80-day tour earlier this year because she can easily drink a countless amount of fluid in one sitting.
Speaking exclusively to BANG Showbiz, she said: ''My tour rider pretty much consisted of water but we're talking like 10 litre bottles that I drink because I'm an absolute camel. I love water. Off stage I can do a full litre or a litre-and-a-half in one shot. I can bong my water.''
The 'I'm Outta Love' hitmaker - who underwent a double mastectomy in 2013 after being diagnosed with breast cancer for the second time - also likes to make sure she's getting her five a day by requesting raw vegetables and hummus.
She added: ''I also have raw vegetables and hummus because I can always use that as a snack.''
However, the blonde beauty - who has a low immune system due to her battle with the chronic condition Crohn's Disease - won't dip into her hummus unless it's in a sealed packet so she can make sure it's fresh and in date.
She explained: ''I ask for the hummus in the container because that's where I get a little germy. I'm like, 'You give me hummus in the container because I want to make sure it's not hummus that's been prepared to be on the shelf for 12 years.' ''