American tech billionaire Elon Musk made a surprise address at the campaign launch for Germany’s Alternative for Germany (AfD) party as thousands of people gathered across the country to protest the rise of the far-right party.

Tech billionaire Elon Musk has stirred controversy by speaking via video at a far-right political event in Germany.

"It's good to be proud of German culture, German values, and not to lose that in some sort of multiculturalism that dilutes everything," Musk said.