The 29-year-old singer, who was refused permission to sing at the ceremony because of her ongoing dispute with Dr Luke last week, sang Bob Dylan's 1964 hit at the T-Mobile Arena on Sunday along with a violinist and pianist. She was applauded by the thrilled audience.
Following her performance, Kesha shared on Instagram: "I'm so grateful for tonight and for the Billboard Music Awards for allowing me to sing. It's my form of prayer. It is my therapy. It literally reaches the untouched corners of my soul. Thank you for having me."
However, the record company restored approval after gaining "reassurance" there would be no mention of the court battle.