India, Sept. 5 -- Kate Middleton has been making headlines with her new blonde hairstyle. The Princess of Wales was spotted with a bold, sun-kissed look with Prince William as they visited the Natural History Museum in London on Thursday, September 4. Also read | Kate Middleton debuts blonde hair: A look at her past dramatic hair transformations

This new blonde hairstyle is reportedly the lightest shade she's ever had, marking a notable change from her typical rich brunette style. The change prompted a range of reactions online, and Sam McKnight, famed hair stylist to Princess Diana (Prince William's late mother), is standing up for Kate Middleton amid online backlash over her new honey blonde makeover.

Sam McKnight came to Kate Middlet...