Marianne Faithfull has made a full recovery from breast cancer and plans to resume a postponed world tour, her spokesman said Monday.

Faithfull, a 1960s icon who once dated Mick Jagger, canceled her tour dates in September after being diagnosed with early stage breast cancer.

Spokesman Rob Partridge said Faithfull, 59, had undergone surgery and was making "a rapid return to full health."

"Marianne Faithfull has made such a successful recovery from breast cancer that doctors have given the go-ahead for her to resume touring commitments in spring next year," he said.

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He said the singer would begin her tour of Europe and North America in Budapest, Hungary, in March.

In a statement, Faithfull said her illness "has been an extraordinary experience and, in many ways, extremely positive."

"I didn't realize how many true friends I had. I feel so lucky and loved and thank everybody for all their good thoughts," she said.

Faithfull gained fame in the 1960s as the girlfriend of Rolling Stones frontman Jagger and as the pure-voiced singer of "As Tears Go By." After battling drug addiction, she re-emerged in 1979 with the raw album, "Broken English," and has since found a new audience as a sophisticated chanteuse.

She has appeared in several films, most recently as the title character's mother in Sophia Coppola's "Marie Antoinette."