Watch This Daughter Sing "I'm Gonna Love You Through It" to Her Mom Battling Cancer

Back in July, the PS22 Chorus in Staten Island, NY, gave an incredibly moving performance of Martina McBride's "I'm Gonna Love You Through It" in honor of their teacher Adriana Lopez, who had recently been diagnosed with breast cancer. Since McBride released the song in 2011, it has become a de facto anthem for the loved ones of people battling cancer.

In a recent video posted to Ellen Degeneres's Ellentube, 4-year-old McKenna can be seen singing the same touching song to her mom — who is currently battling Hodgkin's lymphoma. Through tears, McKenna's mom sings the lyrics along with her.

It goes without saying that the sweet video is likely to make you weep, so make sure to have tissues on standby.