Yes Rihanna said she wanted "a big cut xxxx for Christmas" in an interview for American Elle magazine in 2014. I've seen interviews with Christina Aguilera and Taryn Manning too where they have expressed a preference for circumcised men (though I don't remember the sources), and Christina had a Jewish bris for her son which was well reported in the press at the time. It's rumoured that Taylor Swift asked Harry Styles to get circumcised for her, and that they broke up when he refused. It's widely reported that Michelle Pfeiffer, Jenny Mollen, Sharon Stone, Jenny McCarthy (wrote about it in her baby book, wanted her son to have a pretty penis!), Cindy Crawford, Sandra Bullock, Madonna, Britney Spears, Rachel Weisz, Naomi Watts, and Carla Bruni (who had her sons circumcised and baptised to reflect their diverse religious background.... best of both worlds!) all had their sons circumcised too. Olivia Munn, Iliza Schlesinger and Chelsea Handler are big pro-circ supporters (all gorgeous) and regularly say so. I have seen pro-circ tweets from Azelia Banks and cute British actress Adele Silva, and I love that super sexy British Porn star Emma Leigh is also a huge fan of circumcised cocks, confirmed recently on twitter. Charlize Theron and Debra Messing are big supporters of the circumcision programme in Africa, and it's very likely that Debra's son had a bris.
I've read that Alicia Silverstone decided not to circumcise her son, controversially as she is Jewish, and that Cameron Diaz spoke out against infant circumcision in an interview on US TV, but they seem to be the exceptions to the rule in Hollywood!
Anyone know of any other female celebs who have expressed a preference either way?