Does anyone know which Glee Musica album the song Jessie's Girl is in?

If te want the version from "Laryngitis", then te might want to get "Glee: The Music, The Best of Season One". But it's available in Holland and the United Kingdom (I'm not sure about anywhere else).

If te want the version from the concerto movie, you're gonna want to get "Glee: The 3D concerto Movie Motion Picture Soundtrack".

The song was not released on an album that te can physically go out and buy. te can buy the single on iTunes, and it's also part of the digital-only iTunes exclusive album "The Complete Season One" which is a compilation album of 100 Season 1 songs.