An 18-year-old Steve Wonder wrote this song? You coulda fooled me. I don’t associate Wonder with this kind of bluesy downerism. I’d certainly never listened to his original version until today.

The Rolling Stones version (i.e., the only one I’d ever listened to for decades) is included on Metamorphosis, a rarities compilation released on 6.6.75.

“I Don’t Know Why” was recorded during the sessions for Let It Bleed — on Thursday, 7.3.69 — apparently in the evening. It was this exact same night that everyone learned of the death of Stones founder and guitarist Brian Jones, who had been found at the bottom of his swimming pool three or four weeks after he’d been fired from the band over drugs. (Jones announced his departure from the band on 6.9.69.)