Celebrity Rumer Willis Got a Gun-Shaped Birthday Cake from Demi Moore "I can't wait to see what adventures await me," the 26-year-old wrote in a separate Instagram post By People Staff Published on August 17, 2014 11:00 AM Share Tweet Pin Email Photo: Courtesy Rumer Willis Rumer Willis turned 26 Saturday. This is what her birthday cake looked like. If the caption (“Best birthday cake ever. Thank you mama …” ) is to be believed, Willis received the cake from mom Demi Moore. Willis also posted a cute selfie with a heartfelt birthday message: “I want to say thank you to everyone who helped me get here I thank you all because I would not be the woman I am today without all of you. I can’t wait to see what adventures await me.” The Willis/Moore family is currently dealing with daughter Tallulah’s decision to enter rehab. Want more stories like this? Sign up for our newsletter and other special offers: sign me up Thank you for signing up!