Troye Sivan down in a green rugby shirt at the Sierra Burgess Is a ...

He is the YouTube sensation turned pop hitmaker.

And Troye Sivan was seen rubbing shoulders with the stars of the film Sierra Burgess Is a Loser after party at Avenue in Los Angeles on Friday.

The 23-year-old kept it casual for the event in a green rugby shirt that contrasted his peroxide blonde locks.

Keeping it casual! Singer Troye Sivan ( left) donned a green rugby shirt to the Sierra Burgess Is A Loser film after party and posed for a photo with the movie's star Shannon Purser (right)

Keeping it casual! Singer Troye Sivan ( left) donned a green rugby shirt to the Sierra Burgess Is A Loser film after party and posed for a photo with the movie's star Shannon Purser (right)

He posed for a photo with the star of the movie Shannon Purser, 21, who dressed in a lace pink frock by Tadashi Shoji that draped her curvy physique.

They also shared another photo with Shannon's co-star RJ Cyler, 23, who looked suave in a burgundy tailored suit and black collared shirt.

While the film premiere appeared to be an enjoyable event, it was a momentous day for Troye who released his highly anticipated sophomore album Bloom.

Stars align: The duo shared another photo with Shannon's co-star RJ Cyler (right), who looked suave in a burgundy tailored suit and black collared shirt

Stars align: The duo shared another photo with Shannon's co-star RJ Cyler (right), who looked suave

read more from dailymail.....

Get the latest news delivered to your inbox

Follow us on social media networks

PREV Cardi B accused of ordering posse to attack 'bartenders' whom she believed ...
NEXT Megan McKenna looks sensational in white pyjama suit at her Studio Mouthy ...