Former EastEnders star Palmer, 50, now lives in Malibu where she is a DJ and wellness expert, while Bish, 23, is best known for appearing on ITV2 dating show Love Island last summer, where he was runner-up with now ex Gemma Owen.
Last week, the pair were spotted DJing together at a charity event and posing for pictures, with Bish later sharing a snap captioned: "Auntie Patsy Palmer showing me the ropes."
On Sunday night, fishmonger Bish returned the support by coming along to ITV1's Dancing On Ice to cheer her on – although sadly, it was Palmer's last week in the competition as she and partner Matt Evers were voted out.
Viewers were fascinated by the link between the unlikely pals, with one person tweeting: "WAIT HOW IS LUCA LINKED TO PATSY PALMER??"
Read more: All the Love Island winning couples so far
Someone else asked: "WHY is Luca there for Patsy Palmer? Do they even know each other?"
Another viewer wrote: "Why the f*** is Luca supporting Patsy Palmer am I missing something?"
Someone else tweeted: "luca from love island supporting patsy palmer is so random."
— Dancing on Ice (@dancingonice) February 12, 2023
However, some Love Island fans might remember that their connection was actually uncovered ahead of Bish's starring role in Love Island in summer 2022.
It was revealed that they were family friends when the series casting was announced and Palmer left a message of support for Bish.
One person tweeted: "Obsessed with Patsy Palmer being a close family friend of Luca Bish’s."
Palmer had commented on social media at the time: "Omg @lucabish all grown up and going on @loveisland. We cannot wait to watch you. You will smash it so beautiful, kind & funny. Yay from your Malibu crew."
Bish coupled up with footballer Michael Owen's daughter Gemma on the show and they came second to winners Ekin-Su Culculoglu – who was voted out of Dancing On Ice last week – and Davide Sanclimenti.
He has now split from Owen, but after leaving Love Island explained how he knew Palmer to the Daily Star: "She’s a very close family friend – I didn’t actually know she said anything because they keep everything away from you here. So I’m glad she’s got my back!
"My mum’s been very close to her, and it ended up with her and [husband] Richard [Merkell] and my dad being very close. They just became really close family friends. When they were in England we spent most weekends with each other."