VIDEO: Hailee Steinfeld Performs New Single 'Love Myself' at THE STREAMY AWARDS

Last night, Oscar nominee Hailee Steinfeld gave a world-premiere performance of her new debut single, "Love Myself," at the Streamy Awards. Check out the appearance below!

Steinfeld is best known for her portrayal of Mattie Ross in the 2010 film True Grit, which was her feature film debut, and for which she was nominated for anAcademy Award for Best Supporting Actress, a Screen Actors Guild Award for Outstanding Performance by a Female Actor in a Supporting Role, and a BAFTA Award for Best Actress in a Leading Role.

In 2013 she portrayed Petra Arkanianin the sci-fi film Ender's Game, and Juliet Capulet in the 2013 film adaptation of William Shakespeare's romantic tragedy Romeo and Juliet. Other film roles include Zooey Renner in the 2014 crime film 3 Days to Kill, and Violet* in Begin Again. In 2015, she gained recognition for playing Emily Junk in the sequel Pitch Perfect 2.

Steinfeld debuted her singing voice in Pitch Perfect 2 and released a cover version of "Flashlight", the song she sang in the film. In 2015, she signed a recording deal with Republic Records. Her single "Love Myself" was released along with a music video in August 2015.