Princess Andre declared herself "so proud" of her older brother Junior as he performed his upcoming single for the first time.
The only daughter of Katie Price and Peter Andre, 14, filmed her sibling in action during the launch party of his track Slide, which will be released on Friday.
Flanked by two backing dancers on a stage, Junior performed in front of an intimate crowd who were clearly fans of the 17-year-old's debut song as they sang along.
On Princess' Instagram story, Junior is wearing a red track suit with white trim as he engages with the fans closest to the stage.
As the song hit the chorus, both backing dancers show off their abilities with impressive flips on stage while Junior serenaded the audience.
Junior has been teasing Slide across his social media platforms over the last month, particularly on TikTok where video clips of the song have garnered over 6 million views.
He is following in the footsteps of his father who enjoyed a successful music career from the mid-1990s onwards - like with the chart-topping Mysterious Girl.
Junior gave more details of his launch party on Instagram as he posed in a matching purple and orange denim jeans and jacket combination.
The caption read: "Sun is shining for my first ever performance of Slide tonight. Who's going to be there? 2 days until it drops".
One fan commented: "Good luck with your single release... hope that it goes fantastic tonight...you remind me of your dad in his early days".
A second said: "Have an amazing time J! Enjoy every second!"
Peter commented on the post with three love heart emojis before adding a video to his Instagram stories of him and his eldest child embracing before the show.
He added: "You have no idea how proud I am of you tonight son".
The 49-year-old father-of-four also filmed his son on stage, writing "born to do it". Rapper and comedian Big Narstie was among those in the crowd for the debut performance.
Footage of his musical performance was posted on the Instagram account of his mum Katie, 44 - shared with her 2.7 million followers on the platform.
It showed Junior dancing and mouthing along to his debut single, with him wearing a off-white tracksuit in the video and sporting a pair of headphones around his neck.
The footage is understood to have been filmed in his grandmother Amy Price's garden, with union jack bunting visible in the background as he performed the song.
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