Fifth Harmony's heart is growing stronger, especially after this freshly-minted acapella performance. During a recent visit to the famous Staten Island elementary school, our favorite all-girl group joined forces with the PS22 Chorus for a rousing, piano-driven rendition of their hit "Miss Movin' On."

"This was such an incredible experience. We met so many beautiful kids, both inside and out!" The X-Factor group shared on Facebook.

As evidenced in the video, a thunderous applause and cheers broke out immediately following the performance. Our girls were clearly overwhelmed with the love, and rightfully so. "This experience has been so amazing," shared group  member Ally Brooke Hernandez. "It's so inspiring to see beautifully young people, like yourself, appreciate music so much."

Previously, such artists as Carrie Underwood, Phillip Phillips, Chris Daughtry, Gavin DeGraw, The Walking Dead's Emily Kinney and David Cook, among many others, have visited and performed with the kids.

Check it out: