Wow, one more reason to love Lea Salonga!
Keisha Castle-Hughes breastfeeds--she was the girl in 'Whale Rider', had a bit part in 'Revenge of the Sith' and also played Mary in 'The Nativity Story'. Not hugely famous outside NZ, but pretty cool. She's a young mum--was 16, I think, when she had her daughter? I read an interview with her after the baby was born, and was very impressed--she talked about her boyfriend bringing the baby to her at night so she could nurse.

She also planned a homebirth, though she ended up with a high forceps delivery, and talked about not wanting a C-section. For someone who was so vilified for having a daughter that young she struck me as extremely together and 'with it'; I was pleased!

(Gorgeous baby, too).
Maggie Gyllenhaal also got in 'trouble' for NIP recently, I recall; and Helena Bonham-Carter once spoke of BFing as 'natural liposuction' and said she loved doing it, because it helped increase her bust and slim down her thighs!

So yeah, there are celebrities out there who breastfeed.