Newport Folk Festival-goers were treated to a very special performance on Sunday.

Kermit the Frog made a surprise appearance at the event, belting out “Rainbow Connection” on his banjo.

The “Sesame Street” favourite was joined by a band that included former Sleater-Kinney drummer Janet Weiss and My Morning Jacket singer Jim James.

The performance comes after Weiss announced her departure from Sleater-Kinney.

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She released a statement, which read, according to Rolling Stone: “After intense deliberation and heavy sadness, I have decided to leave Sleater-Kinney. The band is heading in a new direction and it is time for me to move on.

“I will never forget the heights we reached or the magnificent times Corin, Carrie and I shared. We were a force of nature. To the dearest SK fans — you’re the raddest fans in the universe and I love you.”

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“Experiencing the music together has been the honour of a lifetime. Thank you sustaining me the past 24 years and proving without a doubt that love and connection are what saves us.”