Instagram Happy Mother's Day to first-time mom Chrissy Teigen ! The 30-year-old TV host and model and John Legend are celebrating their first holiday with their baby girl Luna Simone Stephens . The singer posted on his Instagram page Sunday a sweet mother-daughter pic of Chrissy and the baby cuddled up in a gray plush blanket as well as a photo of Luna wearing a onesie that reads, "Happy 1st Mother's Day!" Legend, 37, also shared a sweet message. Stars Celebrate Mother's Day 2016 This content is available customized for our international audience. Would you like to view this in our US edition?