They were made in 2015 to promote the movie.
Snoopy-Linus and Lucy
Woodstock-Rocking Robin and Freebird
Charlie Brown-You're a Good Man, Charlie Brown
Lucy in Blue Dress-Devil in the Blue Dress-same motion as red dress Lucy
Lucy in Red Dress-Crazy Little Thing Called Love-she spins and swivels so her skirt fluffs up.
Frieda-Beethoven Day from You're a Good Man, Charlie Brown
Ready Eddie-Come and Get It
Pig Pen-The Kite from You're A Good Man, Charlie Brown
Thibault-Do Wah Diddy Diddy
The Little Red-Haired Girl (this is what her name actually was in the credits of the movie)-Better When I'm Dancin'
Peppermint Patty-Peppermint Twist
Hand Jiving Marcie-she does the Hand Jive while Wille and the Hand Jive plays.
Sally-Girls Just Wanna Have Fun
Maggie-We Found Love
Tori-Make It Shine