Vita Coco announced that it has selected Rihanna to be its latest celebrity spokesperson. The "California King Bed" singer joins Madonna who is a vocal supporter of the product and brand and is also an investor. "I love Vita Coco! It's real coconut water from hand-picked coconuts," Rihanna said in a statement. "It's delicious and so good for you!" Apparently, it is also a good hang-over remedy. Madonna chimed in with a word or praise for the endorsement: "Rihanna is a natural fit for the Vita Coco brand and I'm so happy to have her on the team." Other celebrities who have been endorsed or that have become part investors of the company include Demi Moore, Matthew McConaughey and Anthony Kiedis.