And if you don't know…
From Wikipedia:
Teddy Ruxpin is an animatronic children's toy in the form of a talking Illiop, which looks like a bear. The creature's mouth and eyes move while "reading" stories played on an audio tape cassette deck built into its back. It was created by Ken Forsse with later assistance by Larry Larsen and John Davies,and the first version of the toy was designed by the firm RKS Design. Later versions used a digital cartridge in place of a cassette. At the peak of its popularity, Teddy Ruxpin became the best-selling toy of 1985 and 1986, and the 2006 version was awarded the 2006 Animated Interactive Plush Toy of the Year award by Creative Child Magazine. A cartoon based on the characters debuted in 1986.
And from the Muppet Wiki:
Little Boppers were a line of toys made by Worlds of Wonder in 1987. The toys were sound-activated plush dolls that would "dance" to music. The toys featured plush covered plastic "feet" which were articulated at the "hips" and propelled the toys forward and side to side.
Versions of Baby Piggy and Baby Kermit were produced, along with a line of Disney figures (Mickey Mouse, Minnie Mouse, Donald Duck and Goofy), comical versions of Frankenstein, Dracula and the Wolf Man, and Worlds of Wonder's own Teddy Ruxpin.
…now ya know.
(Thanks, UPSO!)