Miss Piggy will be joining Kermit the Frog in the collection of Jim Henson's Muppets, according to FOX News. In addition to Miss Piggy, Bert and Ernie will also be added.

More than 20 puppets and props from the Henson collection have been donated to the National Museum of American History by Henson's family, including his daughter, Cheryl Henson. Kermit, Oscar the Grouch and other early Henson creations were previously donated.

"I love these puppets' eyes," Dwight Blocker Bowers, the curator, said to FOX. "You can't walk near them without making eye contact.

"They're very much like an oil painting," Bowers continued. "And they have such an innocence."

The newest donation also includes Fozzie Bear, Rowlf the piano-playing dog and Scooter and the Swedish chef from "The Muppet Show." From "Sesame Street," the donations include Elmo, Cookie Monster, Grover and Count Von Count, as well as others.

Many of the donated puppets are the first constructions of the characters.

"She was very well-behaved, considering she wanted to take it home with her," Bonnie Erickson, the creator of the Miss Piggy puppet along with Henson, and who now serves as the director of the Jim Henson Legacy Foundation, said of Miss Piggy.

The donation was made on what would have been the 77th birthday, shortly after the death of his wife, Jane, in April. According to her daughter, Cheryl, Jane Henson spent years trying to find permanent homes for each puppet character. In addition to the Smithsonian, other puppets are being donated to the Museum of the Moving Image in New York City as well as the Center for Puppetry Arts in Atlanta.

"Many of these puppets have been in boxes for years, Henson said. "They've been tucked away in boxes, and we don't want them to stay in boxes. We want people to see them and to appreciate them.

"There's something about puppets," Henson continued. "They're not animated... They are actual, physical things."

The Muppets perform 'Bohemian Rhapsody.'