LaBeouf goes nude 'spontaneously' in Sigur Ros video

Shia LaBeouf appears naked in a new Sigur Ros music video.

In the graphic music video, 'Fjögur Píanó', the 'Transformers' actor is fully nude alongside a naked blonde woman - dancer Deena Thomsen - but the promo's director Alma Har'el revealed the nudity was not planned, it simply happened spontaneously during the five-day shoot.