I don't have anything I would consider embarrassing, but I do have some strange things

Pickin' on Skynyrd - bluegrass versions of classic Lynyrd Skynyrd songs
Pat Boone in a metal mood - Ol' Saddle Shoes himself doing big band versions of some heavy metal classics
Stairways to Heaven - numerous versions of the Led Zeppelin song, including one by Rolf Harris.
Tacky Tunes - one of K-tel's novelty records. This one bought because it has Pete Seeger doing "Little Boxes" on it.