Pop phenomenon Miley Cyrus recently appeared (May 16) on Late Night with Seth Meyers to promote her live performance record and to gush about her godmother Dolly Parton.

Dressed in a blush pink silk dress, the "Wrecking Ball" singer sat beside Meyers to reveal that she communicates with Parton via fax. The fun fact caught Meyers off guard, as the two previously made a cameo in a Super Bowl LVI T-Mobile commercial.

During the short public-service announcement, Parton and Cyrus encouraged individuals to take advantage of 5G phones' full potential. Mike Sievert, CEO of T-Mobile mentioned that he couldn't "think of a better duo" to spread awareness and push their initiative #DoItForThePhones.

The 29-year-old star pointed out that the advertisement does not align with Parton's everyday practices.

"It was amazing because, you know, she was doing it for the phones. Yet, every time I coordinate and kind of communicate with Dolly, it's still through fax," she said. "So I don't know what she's talking about. She's rarely on the phone. Next time we have to 'Do it for the fax machine,'" she laughed.

When the beloved late-night host mentioned the "false advertising" in the ad – Cyrus immediately confirmed that the country legend has a phone, but turns to her team to use it. The hitmaker began to dish on the extent they go to communicate with one another.

"We do use the phone, but she does a fax, and then someone scans the fax, and then they put it into a text message, and then that gets sent to me," she explained. "And it's always signed," she added.

Since the "Jolene" artist takes the time to write personal letter-like messages, Cyrus confessed that she felt obligated to level up her communication approach.

"Now I've kind of started my own version where I go into the notes, and I've started to try to make my own letters because there's something so amazing… just about a connection. It's not casual, you know? that she took the time to get out, I guess, her typewriter."

The multi-platinum artist did not hold back and told a story about a demo she received from the 76-year-old.

"She made me a demo one time where she talks about being super high-tech, but it was all through a cassette. Which she then voice memoed onto a flip phone, which someone then put onto the iPhone...which then got sent to me," the singer-songwriter recalled.

Country music icon Reba McEntire experienced a similar scenario with Parton, when they recorded an updated version of "Does He Love You" together. When McEntire was cultivating her 2021 album "Revived Remixed Revisited," she couldn't just pick up the phone to call her long-time friend.

"Well, you don't call Dolly, you fax her," the songstress told Apple Music's Southern Accents Radio. "And you fax your people, and your people talk to her people."

The three-time Grammy winner said that using a fax machine is the only way she could ever get in touch with Parton.

"That's the only way I know to get ahold of her," she shared with radio personality Dave Cobb. "I even asked Kenny Rogers one time, I said, 'Do you have Dolly's cell number?' He said, 'No.' So you fax her."

After several fax's back and forth, the two eventually got into the studio to revamp McEntire's 1993 hit, "Does He Love You."