Joni Mitchell Performs a Surprising Set at the Newport Folk Festival With Special Guests 

Mitchell first Newport show in 20 years was attended by Marcus Mumford and Brandi Carlile

Joni Mitchell, the "Big Yellow Taxi" singer, wowed the crowd at the Newport Folk Festival  

The reclusive Joni Mitchell held court on a gilded chair for a 13-song 

This show included a parade of special guests paying tribute to the 78-year-old singer 

Joni Mitchell began the set by singing along to songs like "Carey" from Blue, with Carlile 

Mitchell looked and sounded regal, seated in her majestic throne while wearing dark shades 

A beret, and a vibrant satin suit in her first full public concert since 2000

This weekend's festival also included a surprise set from one of Joni Mitchell contemporaries  

Before concluding the set with "The Circle Game," a song she performed more than 50 years ago on Newport