Yellow Balloon was not on the recording, having been in a recent near-fatal car accident. The week of May 20, 1967, the Yellow Balloon's version placed at #25 on Billboard's Hot 100 chart, while Jan & Dean's version placed at #111. This was due largely to the fact that many disc jockeys around the United States played only the Yellow Balloon version of the song. The B-side was the song played backwards, entitled "Noollab Wolley". However, several radio stations banned the song in fear that the song was about yellow hallucinogenic pills for a drug trip, just like the Donovan song "Mellow
Mellow Yellow coffeeshop Mellow Yellow was unsuccessfully raided by police several times. Unpackaged cannabis, bought from wholesalers including drug lord Klaas Bruinsma, was hidden behind secret doors and shutters. In 1975, the concept was adopted by a shop named Russia situated on the same street as Mellow Yellow and was followed by another coffee shop called The Bulldog. Now there are 223 such coffee shops in Amsterdam. Bruining also runs Stichting Mediwiet (Medi Cannabis Foundation), a group that supports the legalization of growing marijuana for medicinal uses. The shop was closed at the strike of the New Year in 2017, due to new