Billie Eilish shares her cartoonic transformation for ‘Happier Than Ever’ concert

Popular American singer and songwriter Billie Eilish has left her fans stunned as she transformed into a cartoon character for animated segment for her highly anticipated concert film Happier than Ever: A Love Letter to Los Angeles.

The music sensation won hearts as she gave fans a behind-the-scenes look at how her animated alter-ego was created. In the video, shared on her IG Stories, the seven-time Grammy Award winner could be seen sporting a red and black motion capture suit covered with reflective markers.

'Shooting the motion picture for the animation in "a love letter to LA" craaaaaaazyy,' Eilish, 19, captioned the clip.

The Lovely crooner also wore a large black mocap helmet. Motion caption dots and lines were painted on her face and white balls were adhered to her hands, legs and shoes.

In Happier Than Ever: A Love Letter To Los Angeles, Eilish performs her new album on stage at the Hollywood Bowl. The live action scenes from the concert are intercut with animated segments in which Billie's character drives a car around Los Angeles.