Some things are just too good to be true, and it appears that a supergroup featuring Jimi Hendrix, Miles Davis and Paul McCartney is one of them. It’s been known for some time that Hendrix and Davis planned on recording an album together in 1969 along with Davis’ drummer Tony Williams. However it has recently come to light that the trio tried to recruit Beatles bassist Paul McCartney for the endeavor.

Apparently the group sent a telegram for McCartney to the The Beatles’ Apple Records in London on October 21, 1969 asking him to get in touch with producer Alan Douglas, who was slated to work with them on the project. The telegram, which includes a few typographical and grammatical errors, read:

We are recording and LP together this weekend. How about coming in to play bass stop call Alan Douglas 212-5812212. Peace Jimi Hendrix Miles Davis Tony Williams.

Unfortunately, the musicians received a reply from Beatles aide Peter Brown informing them that McCartney was away on holiday and would not be back for a few weeks. The project was put on the back-burner and, obviously, became impossible following Hendrix’s death on September 18, 1970. The telegraph itself is now on display at the Hard Rock Cafe in Prague, Czech Republic.