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Photos   -  Keith Urban's Fourth Annual All for the Hall Concert

Vince Gill and Keith Urban Vince Gill (left) and Keith Urban perform at Bridgestone Arena on April 16, 2013.
Brantley Gilbert Brantley Gilbert entertains the crowd at All for the Hall in Nashville on April 16, 2013.
Montgomery Gentry in Nashville Troy Gentry (left) and Eddie Montgomery energize the stage at All for the Hall in Nashville on April 16, 2013.
Welcoming the Fans Billy Joe Shaver greets concert-goers at All for the Hall in Nashville on April 16, 2013.
Eric Church Eric Church reveals a grin onstage at All for the Hall in Nashville on April 16, 2013.
Smiling at the Fans Jessi Colter plays a keyboard and smiles during her performance at All for the Hall in Nashville on April 16, 2013.
All for the Hall: Tim McGraw Tim McGraw provides entertainment during the All for the Hall concert in Nashville on April 16, 2013.
Hank Jr. Hank Williams Jr. plays a song during the All for the Hall concert in Nashville on April 16, 2013.
High Energy Pickin' Jason Aldean (left) performs alongside Keith Urban at All for the Hall in Nashville on April 16, 2013.
Kid Rock Kid Rock performs during the All for the Hall concert in Nashville on April 16, 2013.
Willie Nelson Willie Nelson performs at All for the Hall on April 16, 2013.
Grand Finale All for the Hall performers gather onstage at the conclusion of the fundraiser on April 16, 2013.