Hamilton creator Lin-Manuel Miranda has been added to the star-studded line-up for the inauguration of Joe Biden.
The musical composer and lyricist will recite a classical work during the event on Wednesday.
Former basketballer Kareem Abdul-Jabbar, who is the NBA's leading all-time scorer, chef Jose Andres and Kim Ng, the first female leader of an MLB baseball team, have also been added to the bill.
They will join musicians including Jon Bon Jovi, Bruce Springsteen, Justin Timberlake, Demi Lovato and John Legend in appearing at the ceremony.
Lady Gaga will sing the national anthem as Mr Biden and Vice President-elect Kamala Harris are sworn in to office, with Jennifer Lopez also giving a musical performance.
Later that day, Tom Hanks will host a 90-minute prime-time TV special celebrating Mr Biden's inauguration.
Meanwhile, Mr Biden's incoming chief of staff has said that in his first hours as president, he plans to take action to roll back some of the most controversial decisions of his predecessor and to address the raging coronavirus pandemic. The opening salvo would herald a 10-day blitz of executive actions as Mr Biden seeks to act swiftly to redirect the country in the wake of Donald Trump's presidency without waiting for Congress.
On Wednesday, following his inauguration, Mr Biden will end Mr Trump's restriction on immigration to the US from some Muslim-majority countries, move to rejoin the Paris climate accord and mandate mask-wearing on federal property and during interstate travel.
Those are among roughly a dozen actions Mr Biden will take on his first day in the White House, his incoming chief of staff, Ron Klain, said in a memo to senior staff. Other actions include extending the pause on student loan payments and actions meant to prevent evictions and foreclosures for those struggling during the pandemic.
"These executive actions will deliver relief to the millions of Americans that are struggling in the face of these crises," Mr Klain said in the memo.
"President-elect Biden will take action - not just to reverse the gravest damages of the Trump administration - but also to start moving our country forward."