Double 180 gram Vinyl with Download. Formed in 1963, The Hollies were one of the best and most commercially successful pop/rock acts of the British invasion. Released in 1967, 'Butterfly' is the second studio album released by The Hollies. It is their most adventurous album and the closest the Hollies ever came to psychedelia. It was also the last new Hollies album to feature Graham Nash and he featured as lead vocal accordingly. This is the first time the album will be released on double vinyl including both mono and stereo versions.