Kieran Hayler has documented his daughter Bunny's first school day on his Instagram account.

The 31-year-old estranged husband of TV personality Katie Price has given his followers a behind-the-scenes look at his four-year-old daughter's first day at school, sharing an adorable picture of Bunny and son Jett, five, in their school uniforms.

He wrote: ''Back to school!!!! So proud of my 2 gorgeous children, both brave and looking forward to their school year. Bunny's first day and so proud of Jett being there to support her as she went into her classroom.

''Not going to lie I was close to tears as I am sure many parents will be as they send their little one in for the first day of school. (sic)''

Kieran previously posted a message on Instagram about spending his Monday evening labelling the school clothes of his children.

He said: ''If your kids are back to school tomorrow enjoy your last evening and I am going to label the kids' uniform - get in!''

Meanwhile, Katie has been holidaying in Majorca, Spain, with her new boyfriend Alex Adderson.

The British TV personality - who was previously dating personal trainer Kris Boyson for five months - and Alex, 25, recently made their relationship public and they have been staying in the luxury villa that he owns on the holiday island.

A source recently said: ''Alex and Katie are now 100 per cent together and in a relationship.

''They are both smitten and he can't believe his luck. He is head over heels.

''Alex is loaded and he's been treating Katie to whatever she wants - he's wining and dining her and they're both having a great time.''