Ariana Grande
Singer Ariana Grande has apologised once again for for her infamous doughnut-licking video. Here, she arrives at the 57th annual Grammy Awards in Los Angeles, California February 8, 2015. Reuters/Mario Anzuoni Reuters/Mario Anzuoni

One Direction member Niall Horan and fellow artist Ariana Grande has recently been rumoured to be dating since they were spotted partying together shortly after Ariana’s breakup from Big Sean. Some photographs of the singers partying together in Barcelona have recently emerged, only further fuelling the dating speculations.

According to Hello Magazine, “Niall Horan had a night out with the guys in Barcelona and one special girl – his friend Ariana Grande. “ The pair reportedly still decided to party together in Barcelona amid reports they are dating. “They were happy enough to party together in the Spanish city's Botafumeiro restaurant” the publication stated.

Ariana Grande and Niall Horan were reportedly both present during photographer Alfredo Flores’ 26th birthday celebration on June 16, ahead of Ariana’s concert in Catalonia. Niall arrived first with the birthday celebrant and Arianna arrived thereafter. Mirror UK shared a photo showing the singer being greeted by her fans as she tried to fight her way through them to get inside the restaurant.

Niall Horan marked Alfredo Flores’ birthday with an Instagram photo along with the caption, “Only way to celebrate @alfredoflores is the king!” Ariana Grande also sent her birthday wishes to the photographer through her Twitter page where she wrote, "happy birthday to one of my fav human beings on earth @alfredoflores!!!!!! you are an actual angel. i love u, fredo!!"

Alfredo Flores also shared some photos from his birthday celebration on his Instagram page. One shot shows him with Ariana Grande and another girl, while the other photo shows him with Niall Horan and some of the guests.

According to Hello Magazine, Niall was just in Brussels on Saturday on a show with One Direction when he decided to stop by in Spain to join in on the birthday celebration. He later joined his group for their show in Denmark on Tuesday.

This is reportedly the second time in the month that Ariana Grande and Niall Horan were spotted together. The 21-year-old Irish singer also joined Ariana and her group of friends at London’s Cirque Le Soir club. According to Mirror UK, she was also spotted leaving Niall’s home at 3:00 am after partying with the singer.

However, Ariana had previously lashed out at the dating rumours. She had expressed her frustration at always being linked to a guy during an interview with The Sun. “A girl can be friends with something with a d**k and not hop on it. We live in a horrendously one-track-minded world,” she said.

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