The picture of Barry that Beverly hangs up around the school of him is a photo from when Troy Gentile (Barry) played a part in the remake of Bad News Bears.
The song played during the final scene is "Africa", by Toto.
The video store guy is seen wearing a This Is Spinal Tap T-Shirt which came out in 1984.
Adam's tees: CHiPs "Ladies Man." Also, Erica is wearing Duran Duran, and Andre sports Evil Dead, Spinal Tap, and Repo Man tees.