Joe Biden and Vice President Kamala Harris take on their new roles at the White House, Barack and Michelle Obama joined them on the inaugural stage to cheer them on. However, it was Malia and Sasha Obama who stole the show on Instagram when Michelle shared a beautiful throwback from Barack's swearing in. Michelle posted the touching snap of Sasha and Malia proudly watching Barak's own swearing in.MORE: Everything you need to know about Jill BidenWATCH: Kamala Harris and Michelle Obama greeted