Taylor Swift and Calvin Harris have reignited rumours that they are pop's newest couple after being spotted on a date for the second time in recent weeks.

According to Heat magazine, the Shake It Off hitmaker flew from New York to Las Vegas earlier in March to watch Harris, 31, perform at Hakkasan nightclub. Although the publication claims the 25-year-old singer was on a "date" with the Scottish DJ, it is most likely Swift was on a girls' night out as she was joined by Ellie Goulding, Selena Gomez and Haim.

An image posted by a concert-goer on Twitter shows Swift in the midst of the crowd as Rita Ora's ex-boyfriend works the decks. A source told the showbiz magazine: "Calvin actually chartered the jet to fly Taylor and her mates over 
to see him in Las Vegas. Ellie, Selena and Haim all joined her for the 
trip and they had a great time."

Back in February, Heat reported the musical pair were almost inseparable at Universal's Brit Awards after-party in London, which was allegedly their "first date".

Calvin Harris music removed from Tidal?
Calvin Harris is believed to now be a single man after splitting from Aarika Wolf Getty

"After meeting up at 11.45pm they didn't leave each other's sides and spent eight minutes laughing and whispering into each other's ears while everyone else around them partied,"an eyewitness said at the time.

"They lost each other during a quick loo break, leaving Calvin flapping around and asking his mates 'Where is she?'. But Taylor soon returned and their flirtation continued until 2am."

Harris is said to be back on the market after splitting from model Aarika Wolf. He started dating the 21-year-old in summer 2014 but ended their romance after seven months. A source is said to have told The Sun the couple just "couldn't make it work". Before Wolf, Harris had dated Ora for almost two years, while Swift has been previously linked to Harry Styles, John Mayer and Jake Gyllenhaal.