© @Copyright HELLO! Hello! Magazine Could rainbow hair be the unexpected beauty trend of 2021? Heidi Klum has certainly been giving us inspiration! The German supermodel took to Instagram on Wednesday to reveal she's contemplating a major hair transformation. DISCOVER: Heidi Klum's daughter Leni makes her modelling debutThe 47-year-old star was enjoying a quiet family day at home, filming herself as she sat on the sofa while experimenting with playful Instagram filters.