With tributes and greetings from music greats like Paul McCartney and Joni Mitchell, Cass Elliot, singer of folk-rock band The Mamas & the Papas, has been posthumously honored with a star on Hollywood's Walk of Fame.

The American, who died in 1974 and was a star of the 1960s, received the 2735th star plaque on the famous sidewalk.

Singer Michelle Phillips spoke as the guest speaker.

The 78-year-old is the last surviving founding member of the band "The Mamas & the Papas".

With hit songs like "California Dreamin'" and "Monday Monday", the four-piece band around Elliot, Denny Doherty, John and Michelle Phillips stormed the charts from 1965 to 1968.

Their folk rock influenced the hippie and flower power movements.

Phillips recalled her first encounter with Elliot in 1965. It was also the first LSD trip for both of them and the beginning of a close friendship, the singer told fans and reporters.

Rock musician Stephen Stills (77) recognized Elliot as a "close friend" and the driving force who brought him together with David Crosby and Graham Nash at the time.

Elliot's sister, Leah Kunkel, and the late singer's only daughter, Owen Elliot-Kugell, also attended the ceremony.

They read tributes from Joni Mitchell, Dianne Warren, Carol Burnett and Paul McCartney.

"She was a very special part of the 1960s music scene," wrote the ex-Beatle in a greeting, recalling a meeting with Elliot in London.

The singer, who also released solo albums and had her own TV show, died of a heart attack after performing in London in July 1974.

She was 32 years old.