Ariana Grande & Nathan Sykes: 'Sam & Cat' Premiere!

Ariana Grande and Jennette McCurdy hold hands while attending the premiere of their new show Sam & Cat held at Cineworld O2 Arena on Saturday (October 12) in London, England.

The two actresses were joined on the red carpet by co-star Sophia Grace Brownlee, who posed with her cousin Rosie McClelland.

PHOTOS: Check out the latest pics of Ariana Grande

Ariana‘s new boyfriend Nathan Sykes was also spotted showing his support at the premiere.

“Highlight of the day… Brad was interviewing us and accidentally said “semen cat” instead of “Sam and Cat”. I pray someone got it on video,” Ariana tweeted.

The day before, Ariana and Nathan shared an umbrella while stepping out in the rain together.

15+ pictures inside of Ariana Grande and Nathan Sykes attending the Sam & Cat premiere…