As one viewer pointed out, Yo-Yo Ma performed beautifully at Obama 2009 inauguration, too.
And a reminder:
Earlier, Lady Gaga wowed at Biden's inauguration, nailing her performance of the US national anthem and donning a striking outfit – braids, giant red skirt and most noticeably, an oversized gold dove brooch – that was very Hunger Games.
Today's star-studded inauguration was in stark contrast to Trump's inauguration, when the then-incoming President struggled to attract big stars.
The Washington Post reports that Trump is "particularly upset" that stars like his vocal critic Lady Gaga and Oscar-winning actor Tom Hanks were booked to perform at or attend Biden's inauguration.
Entertainers at Trump's 2016 inauguration included Toby Keith, 3 Doors Down, DJ Ravidrums and The Piano Guys. Actor Jon Voight spoke at the event.