Gwyneth Paltrow/Instagram Apple Martinis officially 21! The daughter ofGwyneth PaltrowandChris Martincelebrates her 21st birthday on Wednesday, May 14, and her famous mom is sharing a sweet tribute in honor of her daughter. The Goop founder, 52, posted a Reelon her Instagramfilled with photos of Apple throughout the years and wrote a sweet message to her not-so-little girl. "To the light of my life, my ray of sunshine, my hilarious, brilliant, best buddy. Happy 21st birthday!!" Paltrow wrote in her caption. "You are exceptionally kind and utterly wonderful," she continued. "I am incredibly proud of your strength and your intellect. Your goofiness and your big laugh. You are just the best. The absolute best. Thank god for you, Apple Martin. I cannot wait to see what this next chapter brings for you. Love, Mama." Never miss a story — sign up forPEOPLE's free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories. Paltrow and Martin are also parents to son Moses, 19. Back in April, Paltrow took tothe comments ofInterview Magazine's Instagramafter they shared photos of her daughterApple'sshoot on their social media. Paltrowleft a sweet messageabout her daughter's interview, which marked the first time Apple had been featured on a magazine cover. "❤️🍎❤️," Paltrow wrote in a comment, which was liked by the outlet. In her interview, the daughter of Paltrow and the Coldplay singer spoke about what she's studying at college and was askedif she's majoring in dramawhile at Vanderbilt University. "No," she replied, laughing. "I'm a law, history and society major, but I wish I would've taken — maybe I'll take a theater course before I leave," Apple continued. "It's a fun balance between my very different extracurriculars and my major." Although she's not technically majoring in theater, Apple is participating in a show this semester with an extracurricular group and, at the time of the interview, was getting her cast's costumes together. "It's really busy because after spring break I have tech week and I have to get everyone's costumes ready for the show," she said. "I'm in the lovely Vanderbilt Original Cast, the esteemed cabaret theater group. This semester's show is a musical parody ofLove IslandcalledLove on an Island. It's so fun. The songs are phenomenal," added Apple. Earlier in March, Paltrow spoke withVanity Fairfor their April cover story and was asked about how hertwo kids have adjustedto being in college. "College is a great equalizer," Paltrow began. "Look, they're the children of two super-famous people, and so they understand what comes with that. They've grown up in it." "You would be surprised at how lovely and unassuming and down-to-earth they are," added the proud mom. Read the original article onPeople
