Conversation so far:
What was Shia LaBeouf's performance art?
Shia LaBeouf began collaborating with Luke Turner and Nastja Säde Rönkkö, embarking on a series of actions described by Dazed as a multi-platform meditation on celebrity and vulnerability.
Were Shia Labeouf's performance acts popular?
Shia LaBeouf's exaggerated motivational speech in #INTRODUCTIONS became an internet meme and was the most searched for GIF of 2015 according to Google.
Are there any other interesting aspects about the Shia LaBeouf article?
Shia LaBeouf caused controversy by walking the red carpet of the 2014 Berlin Film Festival wearing a brown paper bag over his head that read I AM NOT FAMOUS ANYMORE“

Question: what happened to him during one of his performace acts?
Self-contained rewrite: What happened to Shia LaBeouf during his #IAMSORRY performace act?