One Direction's Niall Horan Reportedly Back Together With Victoria's Secret Model Barbara Palvin

One Direction’s Niall Horan appears to have rekindled his romance with Victoria’s Secret Model Barbara Palvin - disappointing Directioners everywhere and causing a huge Twitter frenzy.

The pair, who have quietly dated on-and-off in recent months, attempted to go undercover at a 5 Seconds Of Summer gig at London's O2 Shepherd's Bush Empire last night.

Niall Horan and Barbara Palvin

However, eagle-eyed 1D fans in the audience soon spotted Niall watching the concert from the side of the stage while Barbara instagrammed her view from the same spot.

The cute couple first sparked rumours of a relationship at last year’s ‘X Factor’ wrap party, where they were snapped hand-in-hand and since then, they have enjoyed a number of dates and even spent New Year’s Eve together at a cosy village pub in Hertfordshire.

Both Niall and Barbara have avoided confirming any romance

Niall’s hefty work schedule is said to be keeping them from officially taking things to the next level and Barbara remained insistent that the Irish singer was firmly in the friend zone during an interview at the Elle Style Awards last month.

“Niall is a nice guy, we just hang out,” she told OK! Online. “We’re mates.”

You'll need to be smarter than this to get past the Directioners, guys...

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