Shia LaBeouf is overcome with patriotism at Mount Rushmore in yet another bizarre video

'America! America!'

Look who's back: Shia LaBeouf in fresh controversy after leaving new comedy Rock the Kasbah (Getty Images)

The strange behaviour just keeps on coming with Shia LaBeouf.

For his latest trick, the Transformers actor demonstrated his patriotism during a visit to the Mount Rushmore National Memorial ahead of Independence Day by shouting “America” repeatedly at bemused passers-by.

The incident, which was inevitably captured on video and brought to the attention of TMZ almost immediately, shows LaBeouf topless once again as he walks through the streets.

It comes a day after the 29-year-old was filmed freestyle rapping to a group of young people, during which he declared himself “the best to do this since Tupac”. Hmmm.

LaBeouf announced his entire life was a work "performance art" in 2014 and attributed a number of strange events to this ongoing project. We can only presume his patriotic outburst falls under this category, too.

He is recovering from a hand injury he sustained during a stunt that went wrong for his new film, American Honey.