Kelly Clarkson wore a monochromatic burgundy look, pairing a short-sleeve tweed jacket with wide-leg trousers. Martha Stewart ...

And one royal lady who really was a scene stealer was none other than Zara Tindall who showed up to Westminster Abbey in a stunning burgundy velvet suit. While Tindall appeared solo at the event ...

Roger Federer donned a velvet burgundy suit. Meanwhile, Mirka caught everyone’s attention with a pink and silver sequined dress.