Intro
According to Rosa Lee Brooks not only did Hendrix play on "My Diary" and "Utee" but she and Jimi were also in a relationship during Hendrix's stay in Los Angeles circa 1965.

Hendrix himself never mentioned the Rosa Lee Brooks single, but both Arthur Lee of Love (who is credited as the composer of "My Diary") and Rosa Lee Brooks have stated that Jimi played guitar on the session. Arthur Lee says that he met Jimi Hendrix when Billy Revis recommended him as someone who could play in the style of Curtis Mayfield.