The Material Girl singer shared a throwback snap of her teenager as a young girl, captioning the shot: "Happy Birthday Preciosa! Te Amo❤️❤️❤️❤️❤️siempre! #livingforlove".
Translated the message read as: "Happy birthday beautiful! I'll always love you."
Happy Birthday Preciosa! Te Amo❤️❤️❤️❤️❤️siempre! #livingforlove
The 18-year-old recently left the family home to head to college, where she will study musical theatre and dance at the University of Michigan – where her mother also studied.
Known as Lola, the talented teen has more life experience than most 18-year-olds, working with her mum on their successful clothing line Material Girl which was launched in 2010, and featuring on her mother's tours.
Lourdes was recently spotted enjoying her last stint of freedom before university near Cannes, in the south of France, where she and her family were holidaying.
Soaking up the 30 degree heat, Lourdes showed off her tanned and toned figure in a black bikini. The raven-haired beauty rocked a pair of oversized orange sunglasses as she relaxed on the shore with a group of friends.
Lourde's siblings, Rocco, David, and Mercy were all also in attendance as the family celebrated Rocco's birthday during the holiday festivities.