Pete Seeger was in the Army in WWII.
Jimi Hendrix was not a paratrooper.
I thought it was interesting so read several short biographies. A couple said he entered paratrooper training but was injured and given an honorable discharge.
Others indicate he was discharged for less than honorable reasons.
Either way he served either less than a year of about a year. His biographies are really all over the place. It would probably be difficult to get a straight story about him.