The US election marketing campaign could possibly be determined by a pop star's advice. In Germany, stars and artists are typically extra reserved about their political involvement. And that's not a foul factor.
https://www.spiegel.de/politik/deutschland/deutsche-taylor-swift-wer-koennte-sich-in-den-wahlkampf-einschalten-kolumne-a-cbb6d534-14e8-4a82-8541-87ec176a8a72#ref=rss