After storming the stage during a sold-out concert at London's 02 Arena, Ariana Grande clearly didn't want the fun to stop. The 21-year-old continued her night at London's Cirque Le Soir club, where she was joined by a group of girlfriends and One Direction's Niall Horan.
Ariana Grande and Niall Horan
The Irish singer watched Ariana perform during the first UK date of her Honeymoon world tour, before joining her at the burlesque club.
Wearing a black cut-out crop top and a short pleated skirt, American singer Ariana wore her hair in her trademark high ponytail along with an on-trend choker necklace and platform heels.
Niall, who is currently taking a break from One Direction's own world tour, the On The Road... Again tour, looked smart in a simple T-shirt and jeans, and a grey baker boy cap.
Ariana showed off her washboard abs in a daring crop top despite the chilly evening
Despite the chilly June evening, Ariana didn't feel the need to put her fur jacket on as she left the club, keeping it slung over one arm. The star linked arms with a pal as she made her way home, taking a purple balloon as a memento.
The two couldn't keep the smiles off their faces after their fun night out, even after a small incident at the club which saw the fire brigade arrive on the scene.
As fans of the Love Me Harder singer crowded around her, the star happily posed for selfies and even gave some fans a kiss on the cheek.
Ariana offered a kiss to one fan who asked for a selfie
Other famous faces at the club included Ariana's ex-boyfriend, The Wanted's Nathan Sykes. The British singer had cheered Ariana on during her 02 show - where she performed hits including Break Free, The Way, and Bang Bang.
The Honeymoon tour comes after a hugely successful year for Ariana in the charts, alongside heartbreak in her personal life. Her beloved grandfather passed away in July 2014.
"I lost you to the summer wind," the 21-year-old tweeted, sharing her sad news. The 90-year-old had been battling cancer for some years.
meanwhile Ariana's relationship with Big Sean came to an end in April this year - the two confirmed they had split, with the sress of a long distance relationship seemingly taking its toll.