Throughout his decades-long career, Dolly Parton saw 25 of his songs reach number one on the chart Billboard Hot Country Songs chart – but one in particular is the most personal to her.

In a new interview with The Guardianthe legendary singer-songwriter, 78, was asked to name the song she’s most proud of in her catalog, and the answer might come as a surprise.

“Well, I’m proud of them all,” Parton said. “I think the one that’s most personal to me is the little ‘Coat of Many Colors,’ because it’s about my mom, my parents, and kind of gives you insight. It also covers bullying, acceptance and all that.”

“Coat of Many Colors” was released in September 1971, and she spoke about writing the track about how her mother created a coat out of rags so she could wear it as a child.

Of course, Parton likes a lot of the songs she’s written. “Of course, the one that gets recorded the most is ‘Jolene.’ That seems to be the favorite,” she said. “Did you know that this song has been recorded,” someone told me, “450 times over the last 52 years? I’m so proud of it.”

The Grammy winner added: “And ‘I Will Always Love You’ is one of the great love songs, so I’m very proud of it too.”

Elsewhere in the interview, Parton set the record straight regarding the rumor that she wrote “Jolene” and “I Will Always Love You” on the same day.

“I don’t know if I wrote them on the same day,” she said, “but they were found on the same tape, so I wrote them during that time.”

Parton also spoke about the future of her career and why she “can’t retire.”

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“I always say I’ve been dreaming myself into a corner. I have to keep all these dreams alive. Every dream turns into something else,” she said.

“It was misinformation when I said I wasn’t touring anymore. I’m still doing shows,” Parton added. “I just don’t go on full-fledged tours where I go overseas for weeks. I’m older, my husband is older and I want to be with him more. So no. I couldn’t take my retirement if I wanted to. And I don’t want to.