Serena Williams, Amanda Gorman, Chrishell Stause and Alex Beresford were among those who tweeted their support.
"This is the reality of black girls: One day you’re called an icon, the next day, a threat," the poet wrote on social media.
Feeling inspired by Amanda Gorman? There's a world of poets out there to discover.
Kamala Harris and Michelle Obama, especially, communicated powerful messages through their clothing.
"Um, wow, you're awesome," Anderson Cooper said after the poet recited her mantra.
"We will not march back to what was, but move to what shall be. A country that is bruised but whole, benevolent but bold, fierce and free."
There was a lot of love on social media for Amanda Gorman's rousing poem, which she recited during the ceremony.