After discovering Maya Thompson's blog, Rockstar Ronan, which documents the Phoenix mother's life after losing her young son, Ronan, to cancer, it wasn't enough for Taylor Swift to simply invite Maya to one of her concerts. No, no. So Taylor wrote a song about Ronan (aptly titled "Ronan"), and recently premiered it at the 2012 Stand Up 2 Cancer benefit. Watch video of the slow, touching ballad above.

Taylor tweeted, "I'm playing a new song 'Ronan' tonight on Stand Up For Cancer. It'll be on iTunes tonight with all my proceeds to cancer related charities." After the song premiered, it quickly took over the No. 1 spot on iTunes' Top Songs chart, knocking her first Red single, "We Are Never Ever Getting Back Together," down to No. 2. 

Watch Taylor Swift perform "Ronan" at Stand Up 2 Cancer above. (And grab some tissues before pressing play.)