Miley Cyrus Pens A Letter To 'Hannah Montana' To Celebrate 15th Anniversary

Miley Cyrus took to Instagram on Wednesday to celebrate 15 years since "Hannah Montana" first premiered on the Disney network. The 28-year-old pop star posted a handwritten letter on fancy purple paper to address the “alter ego” that helped launch her career in 2006.

"Hi Hannah, It’s been a while, 15 years to be exact." Cyrus wrote. "Since the first time I slid those blonde bangs over my forehead in the best attempt to conceal my identity. Then slipped into a puke pink terry cloth robe with a bedazzled HM over the [heart]. I didn’t know then… that is where you would live forever."

"Not just in mine, but in millions of people around the world," Cyrus added. "Although you are considered to be an 'alter ego,' in reality, there was a time in my life when you held more of my identity in your glove than I did in my bare hands."

"We had an equal exchange in which you provided a superlative amount of fame in return for the anonymity I could gift to you, but A LOT has changed since then," Cyrus continued. "You were like a rocket that flew me to the moon & never brought me down."

"I couldn’t have imagined when taping myself singing, "I Love Rock N Roll" against a white wall in my mom’s friend’s kitchen in Nashville, TN the name typed in marquee-style letters on the front of a first draft script would make my wildest dreams a reality," she added.

The singer also reflected on her grandfather's death on Feb. 28, 2006.

"You & I have been through it all together my friend. We’ve shared many firsts. A lot of lasts. Ups. Downs. Tears [and] laughs," Cyrus noted. "I lost my poppy my dad’s father while on set filming an early episode of season 1. He wanted to hold on long enough to catch the premier on March 24th. He passed February 28th."

As a response to the letter, the "Hannah Montana" official handle tweeted, "Nice to hear from you @MileyCyrus. It’s only been a decade."

Fans of the popular sitcom took to the comment section to share their emotional stories and childhood memories. Last week, Cyrus revealed that Hannah Montana’s character caused her "identity crisis" on the "Rock This with Allison Hagendorf" podcast.