Summer is almost here and Dolly Parton‘s schedule is heating up.

On June 3, she kicks off her first major tour in more than 25 years, performing along the East Coast and in the Midwest. But that’s not the only upcoming event that has the country superstar in a whirl.

As Dolly exclusively told Closer in 2013, she and husband Carl Dean will host a 50th anniversary bash, followed by a vow renewal ceremony. The festivities will be “at our big old plantation home [in Tennessee]… you know, where we have family and friends,” she shared.

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Dolly in June 2014.

Now insiders reveal new details of the two-part event, which will include a small party for the couple’s nearest and dearest on Saturday, May 28, and an exchange of vows on May 30, Dolly and Carl’s actual 50th anniversary.

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Dolly’s excited about her big day for a good reason: “She didn’t get the wedding of her dreams back in 1966,” says a friend. “She had just signed her first record deal, and her investors didn’t want her getting hitched. They wanted her to seem like she was available to the male country fans. She and Carl basically had to run off and get married across state lines from Tennessee.”

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Dolly in 1965, just one year after meeting Carl.

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It was a wedding as low-key as the couple’s first meeting in 1964, outside the Wishy Washy Laundromat in Nashville, Tenn. And Carl, a businessman, has kept a low profile ever since. “But now Dolly wants to proclaim her love for Carl to the world and feel like a bride again,” says the friend.

To read the full story on Dolly and Carl, pick up the new issue of Closer Weekly, on newsstands now!