But, to Cabello's surprise, her dream turned into a nightmare.
"I was shocked to read the statement the Fifth Harmony account posted without my knowing. The girls were aware of my feelings through the long, much needed conversations about the future that we had during tour," Cabello wrote. "Saying that they were just informed through my representatives that I was ' leaving the group' is simply not true. Just like the other girls said in their statement about their plans, I had also planned to continue with my own solo endeavors in the New Year, but I did not intend to end things with Fifth Harmony this way."
"As sad as it is to see this chapter ending this way, I will continue to root them all on as individuals and as a group. I wish nothing but the best for them, all the success in the world and true happiness," she said. "Just as I said to them during those conversations, and just like I try to encourage you guys, I want to lead by example when I say to each of you guys to be courageous in the pursuit of what makes your heart pound and what makes you come alive with purpose."
"Our happiness is our own responsibility," she continued. "We only have one life and we never know much time we really have. We don't carry money, trophies, social media followers, fame or success with us. We carry the memories that made us feel alive and the moments that made us fall in love with life. New chapters are scary, but conforming to what's safe and looking back with regret is even scarier."
After previously collaborating with Shawn Mendes and Machine Gun Kelly, Cabello is ready to make more music without her bandmates.
"Next year I will be working on my own music and giving you a big chunk of my heart," she promised her followers. "To our amazing fans, I will always be so thankful for the opportunities being in this group has given to me. I am even more thankful for the times that we've gone to get frozen yogurt together and talk about music, for the times we've locked eyes during a lyric, for the hugs that put pieces back together in both of us, for more love than I can put into words, and for showing me the way to myself."
"You took five ordinary girls and made their dreams come true—and together, us and you guys, we've written an amazing story—of girls from all different cultures, backgrounds, colors, shapes, languages, music tastes, all going for one dream—a dream I will never forget. The memories we've made together will last a lifetime," she wrote. "Now I gotta walk the walk. I have always encouraged you to be fearless, to live your life in the name of love and to do what makes you happy. And scary as it is to take the leap, I am excited and full of joy because I know that no matter what happens, I am following my heart. I hope to see you on my journey."
The remaining members of Fifth Harmony have not commented on Cabello's exit.
"We are four strong, committed women who will continue with Fifth Harmony as well as our solo endeavors," they said Sunday. "We are excited for our future, and we can't wait for what the New Year brings. Harmonizers, we are in this together. We love you with all of our heart."
Contrary to reports, E! News learned Monday that the remaining four band members "never resented" Cabello for wanting to pursue solo projects, as they are all doing similar things. "They will be making some big announcements in the New Year. They will be working on new music and have their own projects," a source teased. "They are excited and supportive of each other."