They appeared to confirm rumours of a fledgling relationship on Thursday.
But Calvin Harris and Taylor Swift raised more eyebrows when he was seen driving back from her LA home on Friday morning.
The superstar DJ was spotted the morning after the night before, where Taylor was spotted sitting on his lap during a Haim gig in West Hollywood.
Clearly getting close, the pair seemed comfortable with such public displays of affection.
Yet, the next day, Calvin cut a lone figure as he was seen driving his car back to his own Los Angeles property.