Patti Smith accepted the Nobel prize on behalf of Dylan at the awards ceremony in Stockholm. In place of a speech she sang Dylan's "A Hard Rain's A-Gonna Fall".

From the New Yorker:

After the presentation of the Nobel Prize in Medicine, to Yoshinori Ohsumi, the Royal Stockholm Philharmonic Orchestra played Jean Sibelius's "Serenade," from "King Christian II Suite." The measured Swedish commentator who was delivering a polite play-by-play of the proceedings introduced the punk-rock singer Patti Smith by saying, "Soon we will hear music of a different kind. Something that a lot of people probably have heard before." Any haughtiness was surely inadvertent, but there it was: prepare yourselves for a shift toward the popular. Every yahoo on the street knows this one!

Smith was accompanied by the Philharmonic performing a spare and gentle arrangement of Dylan's "A Hard Rain's A-Gonna Fall," orchestrated by Hans Ek, a Swedish conductor. She looked so striking: elegant and calm in a navy blazer and a white collared shirt, her long, silver hair hanging in loose waves, hugging her cheekbones. I started crying almost immediately. She forgot the words to the second verse—or at least became too overwhelmed to voice them—and asked to begin the section again. I cried more. "I'm sorry, I'm so nervous," Smith admitted. The orchestra obliged. The entire performance felt like a fierce and instantaneous corrective to "times like these"—a reiteration of the deep, overwhelming, and practical utility of art to combat pain. In that moment, the mission of the Nobel transcended any of its individual recipients. How plainly glorious to celebrate this work.

Patti Smith - A Hard Rain's A-Gonna Fall