But away from the studio lights, the broadcaster says she’s learned that life’s biggest moments are often the messiest – and the most meaningful.
Over coffee, Siân is thoughtful and disarmingly honest as she talks about juggling ambition, love and the pressure to “get it right”, especially when it comes to family.
On mum guilt and learning to be kinder to herself
“Mum guilt is such a loaded phrase, isn’t it?” she says.
“It implies you’re doing something wrong just by existing as a woman with interests, a job, or a life beyond being a mum.”
Siân admits that even someone who’s confident on screen can feel that familiar pull of self-doubt.
“You can be having a great day and then suddenly think, Should I be somewhere else? Should I be doing more? It creeps up on you.”
What’s helped, she says, is perspective – and conversations with other women.
“The biggest comfort has been realising everyone feels it at some point.
The ones who look like they’ve got it all figured out? They’re often the ones texting you at midnight saying, ‘I feel terrible today.’”
She’s learned to challenge the guilt rather than accept it.
“I try to ask myself, ‘Would I judge someone else for this?’ And the answer is always no.
So why am I judging myself?”
Her dream wedding (and why perfection is overrated)
When the conversation turns to weddings, Siân laughs before she even answers.
“Oh, I definitely had a Pinterest wedding in my head at one point,” she says.
“You know the one – beautiful flowers, perfect lighting, everyone behaving impeccably.”
But as she’s got older, the idea of a “dream wedding” has shifted.
“Now, it’s much more about the feeling than the aesthetic.
I love the idea of a day that feels relaxed, where people are genuinely happy and maybe slightly emotional – in a good way.”
She admits that the pressure around weddings can be intense.
“It’s easy to feel like it has to be the best day of your life, and that’s such a strange expectation to put on 24 hours.
I think the best weddings are the ones where something small goes wrong and everyone laughs about it.”
If there’s one non-negotiable? “Good music,” she says instantly.
“If people are dancing, everything else fades into the background.”
Meeting Elton John – and that bathroom
Siân has interviewed plenty of famous faces, but one encounter still makes her grin: meeting Sir Elton John.
“He’s exactly what you hope he’ll be – warm, funny and completely himself.”
And yes, she’s seen his bathroom. “Everyone always asks about the extravagance,” she laughs.
“I won’t betray any secrets, but let’s just say it’s… very Elton.”
She describes it as “bold, unapologetic and slightly surreal.”
“You walk in and think, ‘Of course it looks like this.’
It’s not trying to be minimalist or understated. It’s joyful.”
What struck her most wasn’t the glamour, though.
“He has this incredible way of making you feel at ease.
You forget you’re talking to a global icon and just feel like you’re chatting to someone who loves what they do.”
Looking ahead
As for what’s next, Siân says she’s trying not to over-plan.
“I’ve spent a lot of my life thinking about the next goal, the next milestone.
Now I’m more interested in being present for what’s happening right in front of me.”
That doesn’t mean she’s slowing down.
“I still love my work, I still get excited about new projects.
I just don’t want to beat myself up if life looks a bit messy along the way.”
If there’s one message she hopes other women take from her honesty, it’s this: “You’re allowed to want more than one thing.
You’re allowed to love your family and your career and yourself – and you don’t have to apologise for any of it.”
And with that, she smiles, finishes her coffee, and heads back to the studio – proof that sometimes, the most exclusive stories are the ones about simply being human.
