Concetta Caristo: Triple J Host on Name Change and Departure

After building a public career as Concetta Caristo, the triple j Breakfast host quietly changed her name to Siena earlier this year — a return to a name she had used after her family fled domestic violence. This article pieces together the verified facts of her career moves, her personal history, and the questions that remain unanswered.

Known for: Co-hosting Triple J Breakfast ·
Occupation: Radio presenter and comedian ·
Name change: Changed her name to Siena in March 2026

Six key facts, one pattern: the same person operating under two names across overlapping timelines.

Does Concetta Caristo have a partner?

Is Concetta Caristo single?

Concetta Caristo has not publicly confirmed a romantic partner. Speculation has been fuelled by her appearance on I’m A Celebrity… Get Me Out of Here! alongside fellow contestant Luke, but no official relationship has been announced.

Are Concetta and Luke still friends?

Both have addressed romance rumours in media interviews and stated they are friends. No public falling-out has been reported.

Will Luke and Concetta get together?

Neither party has indicated plans for a relationship beyond friendship. The question remains unanswered.

The pattern: the subject’s silence maintains boundaries while the rumour mill keeps her name in circulation.

Why is Concetta Caristo leaving triple j?

What happened to Concetta from triple j?

Triple j announced in April 2026 that Concetta Caristo would step away from Breakfast in June 2026, according to ABC triple j (the public broadcaster). The network said Concetta and Luka would conclude their Breakfast journey on June 26, 2026. Concetta posted on Facebook on April 16, 2026 confirming the departure, calling it “a massive three years at triple j” (Concetta Caristo’s Facebook post).

What is Concetta doing now?

She continues performing as a comedian and improviser in Sydney. In March 2026, a No Filter podcast (iHeartRadio) revealed that she had changed her public name to Siena, a detail later reported by Now To Love (lifestyle publication). Her Instagram handle @concettaworldwide remains active with comedy content.

The implication: the name change signals a personal reinvention, not a retreat from public life.

What is Concetta doing now?

She continues performing as a comedian and improviser in Sydney. She changed her public name to Siena, reported in March 2026 by Now To Love (lifestyle publication). Her Instagram handle is @concettaworldwide, where she shares comedy content. In the No Filter podcast, she said she donated her I’m a Celebrity prize money to Full Stop Australia (iHeartRadio).

Are Concetta and Luke still friends?

Concetta and Luke have publicly maintained a friendship after I’m A Celebrity. They have addressed romance rumours and stated they are friends. No further details are available.

What happened to Concetta Caristo as a child?

Details of Concetta Caristo’s childhood are not widely documented. In the March 2026 No Filter podcast, she said her family legally changed their names after reaching a refuge, and she became “Siena” as part of that change (No Filter, iHeartRadio). She occasionally references personal experiences in her comedy but has not shared a detailed account.

The pattern: a name change that was once an escape now becomes a conscious return to authenticity.

For Concetta Caristo—now Siena—the choice between continuing as a known radio personality and rebuilding under a reclaimed name is a deeply personal one. For Australian audiences, the implication is clear: the public figure they knew is stepping into a new chapter, and the name change is not a rebrand but a return to an earlier, truer identity.