Alice in Chains singer William DuVall told Drowned in Sound
the story of the song: "'Phantom Limb' was a musical demo that was sent to me, which I immediately reacted to, and within a day or so had written all the words for it," he said. "Within the first few minutes, I had a couple of lines for it, and over the next day or so, I refined it. All that stuff happened pretty quickly."
"Basically within 48 hours of them sending the musical demo, I sent them back a fully formed vocal track, pretty much what you here on the record," Duvall continued. "The actual recording was reproducing what I did at home. It never had a solo, so at one point where we were at Hanson, deep into recording, [Jerry] Cantrell asked me, 'Do you wanna play the solo on that, 'Cause I don't have anything.'"