Bassett will be presenting at this year's ceremony.
Awkwafina, Kristen Wiig and Renee Zellweger will also be presenting.
The actress, who portrayed Boseman's mother in the Marvel film, says he is 'irreplaceable.'
On Wednesday, Joe Biden was sworn in as the 46th President of the United States and J.Lo, Lady Gaga and Garth Brooks performed.
ET exclusively debuts a clip from Monday's premiere, plus Angela Bassett previews the return.
Pete Docter, Kemp Powers and Dana Murray answer our biggest questions about Pixar's latest.
The actress opened up to ET about the late actress and the iconic film on its milestone anniversary.
ET chatted with actress Angela Bassett, who spoke highly about working with legendary singer Whitney Houston on the 1995 film.
The actresses open up about the 'complexity, diversity and beauty' of their Pixar film.
Ryan Coogler, Angela Bassett and others shared tributes in honor of the actor, who passed away after a 4-year battle with colon cancer.
ET spoke with Spike Lee and the cast of ‘Malcolm X’ in 1992 about making the historical epic.
Angela Bassett, Billy Porter, Lizzo and Regina King are up for Entertainer of the Year.
ET's Keltie Knight was on set of the Fox hit show, where Stark gave the ET cameras a special tour of the set!
ET was on set of Fox hit '9-1-1' with Jennifer Love Hewitt and her co-stars where they helped co-host the show!
