Coronation Street star Katie McGlynn has chosen a dramatic way to announce her entrance to social media platform TikTok – by dyeing her hair bright pink.The 27-year-old actress – who plays Sinead Tinker in the long-running soap – posted a short video to both Instagram and TikTok, demonstrating how she took her naturally blonde hair to a bold candy-pink shade at home. In the clip, Katie starts off makeup-free and wearing glasses, with her shoulder-length blonde hair unstyled.