Ariana Grande arrived at the Hertfordshire mansion at 10pm on Tuesday. After spending some hours in the mansion of One Direction's Niall Horan,the 21 year old pop princess was spotted leaving the place at 3am.

According to the Daily Mail the pop princess was with some members of her entourage and was picked up by a driver and bodyguard.

Ariana's representative told HollywoodLife that Niall and Ariana are just friends and that the pop princess was just there to join Niall's party and she was just leaving the vicinity when she was spotted early in the morning.

Just reported recently, after Ariana performed at London's O2 Arena for the launching of The Honeymoon World Tour on June 1, the pop princess went on partying all night long with the One Direction singer Niall at the burlesque club, Cirque Le Soir. Her Ex Nathan Sykes also joined the party, the party was actually to honor Ariana's massive tour.

After partying with her ex and new found friend the pop princess posted a video in Instagram, Niall and her sucking a balloon filled with helium where she wrote, "new friends + old friends + helium balloons @lexie1225 @alfredoflores @niallhoran @chantelgonsalves."

Niall also was among of the 20,000 crowd at Ariana's concert, and he posted a video of the pop princess performing live on stage, with the caption, "This girl blew me away! She has the most incredible voice I've heard! Superstar!" So sweet!   

The pop princess also shared new lyrics on Twitter on Saturday after a fan messaged her, revealing that her new single 'Moonlight' will be the title of the album. She also said, 'It's a song that is very near and dear to my heart. my favorite / most special song i've got to this day.'