What charity single did Taylor Swift perform in Glendale, Arizona on her fourth concert tour?
Ronan (song): "Ronan" is a charity single released on September 8, 2012, by American singer Taylor Swift to the iTunes Store. Ronan (song):  Swift first performed the song live for Stand Up to Cancer in September 2012, and has only performed it publicly one other time, at the Glendale, Arizona stop of The 1989 World Tour, at which Thompson was in attendance. The 1989 World Tour: The 1989 World Tour was the fourth concert tour by American singer-songwriter Taylor Swift, in support of her fifth studio album, "1989" (2014).
Ronan