Conversation so far:
How is Shia LaBeouf relevant to performance art?
In early 2014, Shia LaBeouf began collaborating with British artist and author of The Metamodernist Manifesto, Luke Turner, and Finnish artist Nastja Säde Rönkkö.

Question: Why did he collaborate with them?
Self-contained rewrite: Why did Shia LaBeouf collaborate with British artist and author of The Metamodernist Manifesto, Luke Turner, and Finnish artist Nastja Säde Rönkkö?