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Demi Lovato wants the makers of Barbie to use a more full-figured woman - like herself - as inspiration for a new doll.  The singer has called on her over 14-million Twitter followers to "blow up" the toy-maker's page with requests for a Demi Lovato Barbie. 

She wrote that she's collected the dolls since she was a girl, and having one of her own with her "actual body type, weight and height" is one of her "biggest dreams."  Demi also added that it would make for a "dope" present for her 21st birthday coming up in August.  

The "Heart Attack" singer has been open about her past issues with self-image since her 2010 stint in rehab, where she was treated for eating disorders, among other issues.