Miley Cyrus has been working closely with the Starkey Hearing Foundation for quite some time now, and the singer/actress recently returned to Haiti for the second time in order to lend assistance in Starkey's 'So the World May Hear' campaign. While there, Cyrus helped with the distribution of state-of-the-art hearing aids to hundreds of Haitian children and adults.

Cyrus and Haitian President Michel Martelly worked with Starkey representatives to give the gift of hearing to more than 400 Haitian citizens, many whom lost their hearing due to the injuries sustained during the devastating earthquake that hit Haiti in 2010.

Starkey's visit to the country was made possible due to a generous donation from the former 'Hannah Montana' star. Cyrus, who also visited the President's palace on her trip to Haiti, bid on the trip during a silent auction back in July, and the funds from the silent auction allowed the Starkey team and Cyrus to give hundreds of Haitians the ability to hear once again. There are few gifts that are stronger and more powerful than the gift of sound, and it is obvious that Cyrus was incredibly moved by the people around her, as you can see in these pictures.

"After I went on my first mission to Haiti with the Starkey Hearing Foundation, I felt so drawn to helping others hear for the first time and immediately wanted to look for another chance to go back and help again,” Cyrus said in a press release.  "This second mission to Haiti was just as impactful to me as the first one. I grew up around music and couldn’t imagine what it would be like for my siblings and me, if we couldn’t hear the magic of music. It’s had such an influence on my life, that I just want everyone to enjoy sound as it was intended."

Cyrus is also involved with the Starkey Hearing Foundation's 'Listen Carefully' campaign, which promotes healthy listening as opposed to the hazardous kind. Cyrus once delivered the 'Listen Carefully message by saying, "Your hearing is fragile, so don’t listen loudly, listen carefully."