Watch Ariana Grande and One Direction's Niall Horan inhale helium together

Ariana Grande is currently on the European leg of her Honeymoon Tour and has been documenting her overseas experience on Instagram. In a posting spree June 2, one of the videos featured helium and a familiar face—One Direction’s Niall Horan.

Horan attended Grande’s show at London’s O2 Arena on June 1, as he showed in his own Instagram post of her singing “One Last Time.” Clearly this was no secret to Grande, as she and Horan enjoyed some silly post-show time with helium balloons and took to Instagram to share their new chipmunk-esque voices with fans. The only sentence that’s fully intelligible: Grande’s “I can make a broke bitch rich.”