They reignited long-standing rumours or a romantic reunion when they were spotted in New York this week, after partying together in LA earlier in the month.
And Chloe Moretz appeared to confirm the reunion with former flame Brooklyn Beckham on Thursday, commenting with a heart emoji under his recent Instagram post.
Fans speculated that they could also see the model and actress, 20, in the shadow of the snap shared by the 18-year-old son of David and Brooklyn Beckham.
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Instagram official? Chloe Moretz appeared to confirm the reunion with former flame Brooklyn Beckham on Thursday, commenting with a heart emoji under his recent Instagram post
Brooklyn, who has moved across the pond to start a photography course at Parsons School of Design in NYC, uploaded a picture as he posed alongside his university lockers.
And Chloe, who by the shadow appeared to be the photographer, soon commented with a heart emoji, and '@brooklynbeckham'.
The declaration sent his comments into a whirlwind, with one fan commenting: 'Please tell me you guys are back', while many more added: 'Back together and that's her in the shadow!'.
Going public? The actress, 20, reignited long-standing rumours or a romantic reunion with the aspiring photographer, 18 when they were spotted in New York on Tuesday, after partying together in LA earlier in the month
Another fan joked, 'Madison Beer is shaking', referring to his most recent ex, Justin Bieber's prodige.
In July, Madison appeared to confirm her relationship with Brooklyn, admitting they 'hang out almost every day'.
Admitting they were into each other, she told AOL at the time: 'We are definitely crushing on each other. But we're both very busy ... He's great, he's a cutie, he's one of my best friends ... We hang out almost every day.'
But Wednesday the singer, who spent much of the summer with Brooklyn in LA, confirmed they had decided against embarking on a relationship due to the long distance.
Breaking her silence: On Wednesday Madison Beer, 18, claimed she and Brooklyn Beckham split because she 'can't do long distance' relationships
Speaking to People magazine, Madison confessed: 'I can't do long distance.'
And this appeared to officially clear the way for Brooklyn