Jeff Hanna Photo - July 26 2011 - Nashville TN - Jeff Hanna of the Nitty Gritty Dirt Band sang crowd-favorite Mr Bojangles Artists musicians and songwriters came together at Mercy Lounge to help raise funds for Pete Huttlinger a widely respected guitarist and Nashville studio artist  Huttlinger has a congenital heart disease and is in need of a heart transplant Photo credit Dan HarrAdmedia