Taking their new Nickelodeon series Across the Pond, the stars of "Sam & Cat" headed to the UK premiere at Cineworld O2 Arena on Saturday (October 12).

Posing together on the orange carpet were Jennette McCurdy, who wore a strapless gray zebra print dress, and Ariana Grande, who donned a pretty floral print mini dress with nude heels.

Also there to support his main squeeze was Ariana's boyfriend Nathan Sykes of The Wanted, who sported a black jacket, white button-down shirt, and jeans for the occasion.

In the show, tough and independent Sam teams up with sweet and flighty Cat to run a babysitting business out of their home. "Sam & Cat" airs Saturday at 8:00pm ET on Nickelodeon.