Patti Smith struggled during Bob Dylan's Nobel Prize performance

Singer Patti Smith, who recently performed Grammy-winning musician Bob Dylan's 'A Hard Rain's A-Gonna Fall' at the Nobel Prize ceremony in Stockholm, had to stop her performance in the middle after struggling to sing some of the words.

The 69-year-old songwriter said she was extremely nervous and scared to perform Dylan's song as she thought he might not like it.
"I found myself in an unanticipated situation, and had conflicting emotions.In his absence, was I qualified for this task? Would this displease Bob Dylan, whom I would never desire to displease?"
"But, having committed myself and weighing everything, I chose to sing 'A Hard Rain's A-Gonna Fall,' a song I have loved since I was a teenager, and a favorite of my late husband," she said.
Smith recalled meticulously rehearsing the song, "I had it in my mind to sing the song exactly as it was written and as well as I was capable of doing."
"I was struck with a plethora of emotions, avalanching with such intensity that I was unable to negotiate them. From the corner of my eye, I could see the huge boom stand of the television camera, and all the dignitaries upon the stage and the people beyond."