Katie Price and Peter Andre have reunited for Junior's 18th as he spends the milestone with his friends abroad.
The former couple got divorced in 2009, but have continued to co-parent their son and his sister, Princess, 16.
Pete, 50, and Katie, 44, often speak about their pride for their kids and have now taken to Instagram wishing Junior many happy returns.
Sharing an adorable montage of the teenager, Pete said: "Junior, you are everything I could ask for in a son. I love you beyond words, truly, and I am so proud of who you have become. Stay kind, humble, caring and focused like you are and you will go more than far. I can’t wait for the world to hear what you’ve been working on.
"Forever my baby boy. Happy 18th birthday."
The Mysterious Girl star also paid tribute to the Slide star in his new! magazine column, sharing: "I can't believe he turns 18! Where does the time go? He's excited to go away with friends to celebrate, but we'll be sure to mark it when he's back."
Mum-of-five Katie also wished her son the best, posting a pic of Junior on Instagram with the caption: "18 today! Happy Birthday Junior. Love you so much."
Junior is following in his dad's footsteps as a recording artist after crooner Pete shot to fame with Mysterious Girl.
Last year, the teen's debut single Slide slid straight to number one and with his dad guiding him every step of the way it seems like Junior will enjoy a career in the music industry.
In March, he announced he was supporting pop star HRVY at London's 02 Shepherds Bush Empire alongside Love Island's Antigoni Buxton.
Junior warmed up the crowd for HRVY after Antigoni - who made her debut in the villa last year - opened the show.
Taking to Instagram revealing his latest career milestone, Junior said: "Can’t wait for this".
The star's proud aunt Sophie, who is Katie's sister, was one of the first to congratulate her nephew.
She replied to his announcement, saying: ""Well done J brilliant news."
Junior's news came after the teen announced he would be singing at Bestival this summer.
Aussie Pete said he 'couldn't be prouder' of his son after he landed a spot at the prestigious festival in the south of England.
Meanwhile, Princess is forging her own career as an influencer after striking a deal with online brand Pretty Little Thing.
The 16-year-old has already taken part in some small modelling jobs for the brand on her social media, and in April attended a PLT event with her stepmum Dr Emily MacDonagh.
