Porter, 34, a former child actress known for her roles in "Curly Sue," and "Parenthood," also made history for Christina Aguilera who became the first female coach to have a winner, said The Hollywood Reporter.
"Tonight is a true victory for women" Aguilera said backstage.
The star-studded evening included performances by former Voice coach CeeLo Green, Ariana Grande, Sia, Little Big Town, Jennifer Nettles, Alison Krauss, Joe Walsh and Zayn Malik.
"I have retired from Curly Sue I am now the girl who won The Voice! I've waited 30 something years," Alisan said.
She said this is just the beginning of her journey.