Just a word of warning, you should probably have some tissue or a good excuse about something getting in your eye when you watch this.  Darla Holloway is four years old, and battling leukemia but that didn't stop her from nailing 'God Bless America'.

Singing in front of a sold out crowd at Fenway Park is normally reserved for huge stars, but thanks to The Jimmy Fund, Darla was able to do it too.

Darla suffers from acute lymphoblastic leukemia, and is currently going through chemotherapy treatment.  She reportedly practiced the song every day for weeks, so she could sing at Fenway.

Darla, the practice payed off.  I wish we all had half of the courage you showed.

Click on the picture below to see another cool moment that the Browns gave to a 5 year old cancer survivor named Ryan.