Cyrus also supports thirty-nine well-known charities including: Make-a-Wish Foundation, Cystic Fibrosis Foundation, St.Jude's Children's Research Hospital, To Write Love on Her Arms, NOH8 Campaign, Love Is Louder Than the Pressure to Be Perfect and The Jed Foundation among others.
After Billy Ray took her to see a 2001 Mirvish production of Mamma Mia!
at the Royal Alexandra Theatre, Cyrus grabbed his arm and told him, "This is what I want to do, daddy.
Cyrus stated: "I want (kids) to do something they love.
Not something that seems like a chore because someone tells them that's the right thing to do or what their parents want or what's important to people around them, but what's in their heart." In December 2011, she appeared in a commercial for the charity J/P Haitian Relief Organization, and teamed up with her elder brother Trace Cyrus to design a limited edition T-shirt and hoodie for charity.
Cyrus performed with Robin Thicke at the 2013 MTV Video Music Awards, a performance that resulted in widespread media attention and public scrutiny.