They had enjoyed a seven-month romance back in 2015, before Calvin Harris had dumped his model ex to pursue his former flame Taylor Swift instead.
But it appears the Scottish DJ, 33, has now rekindled his relationship with ex-girlfriend Aarika Wolf two years later.
According to reports, things are back on between the pair, with Aarika even flying out to Las Vegas in June to watch Calvin perform as part of his residency at Omnia.
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Back on? Calvin Harris, 33, is reportedly dating his ex-girlfriend Aarika Wolf again, with the model flying out to reunite with him in Las Vegas in June
A source has claimed to The Sun that things are 'getting serious', as they detailed their recent reunion to the paper.
'Aarika flew out to see Calvin DJ at his Vegas residency... She was in the DJ booth and gazing at him all night,' they said, adding that the duo had left together at the end of the evening.
Reports of their reunion comes after fans have been questioning whether Calvin and catwalk star Aarika are an item again. The duo have appeared to have sparked speculation they are in a relationship through their latest social media activity.
It's said they have been liking each other's posts on Instagram - almost every one in the last few months.
History: The Scottish DJ and Aarika had first dated in 2014, enjoying a seven-month romance before he split with her to pursue Taylor Swift instead
MailOnline have contacted representatives for both Calvin and Aarika.
The duo first began dating in 2014, after meeting on the set of Calvin's music video for his track Blame.
They enjoyed a seven-month romance, before splitting the following year, with reports emerging detailing their split in February 2015.
Their break up came after Calvin was claimed to have put on a flirty display with Taylor Swift at the Brit Awards earlier that month. He was then spotted with the Shake It Off singer just a month later in March.
At the time of his split with Aarika, reports claimed that Calvin had wanted to be 'single' and his break up with the fashionista had been 'amicable', despite their romance not working out.
Past: At the time of his split with Aarika, reports claimed that Calvin had wanted to be 'single' and his break up with the fashionista had been 'amicable'
They were both into each other for a long time but it just didn't work out and they'll stay friends.
'Calvin is always really busy and is constantly travelling around to DJ gigs so he's happy to be single for a while.'
The How Deep Is Your Love hit-maker then went onto date Taylor for 15 months,