WATCH BELOW: Joe Biden celebrates as he is sworn in as the 46th US PresidentUnlike previous years, the crowds were non-existent due to the coronavirus pandemic but former Presidents, First Ladies and key political figures were still in attendance to watch the new president address the nation.But if you're anything like us, your eyes were no doubt drawn to the fashionable garments donned by the female attendees - and one colour reigned supreme.VP Kamala Harris shone in a jewel-toned purple coat