Selena Gomez was spotted sharing a warm hug with Justin Theroux at the 16th annual CNN Heroes gala in New York City on Sunday.

The Come & Get It singer, 30, and The Leftovers star, 51, enjoyed a sweet reunion and chat at the event, as Justin’s adorable pit bull Kuma looked on and even got some back scratches from Selena.

It comes four years after the duo were rumored to have dated, following the actor’s split from Jennifer Aniston, 53, in early 2018.

Sweet: Selena Gomez was spotted sharing a warm hug with Justin Theroux at the 16th annual CNN Heroes gala in New York City on Sunday

Justin Bieber’s ex looked incredible for the outing, wearing a black leather blazer and silver hoops.

Gomez wore her black tresses in a chic updo, and rocked classy French tip nails and flawless makeup.

Meanwhile Theroux looked dapper in a grey suit and rocked his usual neatly trimmed beard.

Reunited: The singer, 30, and The Leftovers star, 51, enjoyed a sweet reunion and chat at the event, as Justin’s adorable dog Kuma looked on and got some back scratches from Selena

Rumored flames: It comes four years after the duo were rumored to have dated, following the actor’s split from Jennifer Aniston, 53, in early 2018

The two looked to be engaged in a friendly conversation with Justin sitting at a table with his pup, as Selena stood by and showered Kuma with affection.

Justin famously adopted the female dog – whose name means ‘bear’ in Japanese – from Austin Pets Alive in the aftermath of Hurricane Harvey in 2018.

And little Kuma later joined Theroux onstage as he presented a CNN Heroes trophy to Peace of Mind Dog Rescue co-founder Carie Broecker for her ‘impactful work serving senior people and senior dogs.’

PDA! Justin famously adopted the female dog – whose name means ‘bear’ in Japanese – from Austin Pets Alive in the aftermath of Hurricane Harvey in 2018

Aww: Kuma joined Theroux onstage as he presented a trophy to Peace of Mind Dog Rescue co-founder Carie Broecker (R) for her ‘impactful work serving senior people and senior dogs’

The Gomez and Theroux romance rumors happened in 2018 after both stars went through difficult breakups.

The two had apparently known each other through their manager for years but grew closer following the breakups.

They were spotted together in May of 2018 getting lunch with actor Paul Rudd, who co-starred with Gomez in the 2016 film The Fundamentals of Caring.

Romance buzz: The Gomez and Theroux romance rumors happened after both stars went through breakups and were spotted out together; Pictured at 72nd Golden Globe Awards with Paul Rudd

Former flame: At the time Selena had split from on/off again ex Justin Bieber, 28, after a brief reunion; Pictured 2012

At the time, the Wolves hitmaker had just split from her on/off again ex Justin Bieber, 28, after a brief reunion.

Bieber then went on to date his current wife, Hailey Bieber, 26.

Meanwhile Theroux had just gotten a divorce from Aniston, after three years of marriage.

The ex: Meanwhile Theroux and Aniston – who got married in 2015 – called it quits on their romance in 2018, three years after saying ‘I do’; Pictured 2017