I usually listen to the (great) canadian radio show WeFunk online (http://www.wefunkradio.com) when at work since I don't have my own music on the school's computer, and the other day, in one of the shows DJ Static (the host) played... I Don't Wanna Stop (Ren Woods, composed by P and a hell of a rarity for those who don't know)!

U should have seen my face

I mean WeFunk plays a lot of rare and underground stuff but of all the Prince songs in the world if there was one that was so old, confidential and obscure that I never thought it would ever have been played on any radio since 1982 (if it was even played at all by then), it was IDWS!

All hails to DJ Static!

[Edited 10/31/15 2:15am]

You mean "Gotta Stop (Messin' About)," right?

No, not "Gotta Stop (Messin' About)", but the withdrawn cut he wrote for Ren Woods. Like the OP said, it's about as obscure as you can get.

Ren Woods?

I no Ron Woods.

Never heard a thing about this song mentioned.

http://www.princevault.com/index.php/I_Don't_Wanna_Stop

I had a lower quality Mp3 of this song years ago but lost it.

I remember thinking it was an ok song.

Doozer said:

I was gonna say, "The song is called 'Ain't About 2 Stop'" and offer my condolences but then read your post and realized you heard a much better song.