The Tool Box in the background in the couple of scenes at the Taylor House is an obvious call back to the previous Season (Season 2's) Halloween Episode. The first Halloween Episode of the series in which the Tool Box was used as Prop in that year's Taylor's Basement Haunted House Tour for the Party Goers.
The title is based on the 1930 musical "Crazy for You" with a book by Ken Ludwig, lyrics by Ira Gershwin, and music by George Gershwin. The musical was revived in 1992 and received a Tony Award nomination as best musical. The original Broadway production opened at the Shubert Theater in New York on February 19, 1992, ran for 1622 performances and won the 1992 Tony Award for the Best Musical.