Luke Bryan is one of a group of country superstars who took a break from CMA Awards prep earlier this week to help fight hunger by signing a guitar for charity.

Vince Gill, George Strait, Kacey Musgraves, Easton Corbin, Dierks Bentley and Billy Currington also signed the guitar, which will be auctioned off to benefit Second Harvest Food Bank of Middle Tennessee. Yoplait Greek and Universal Music Group are sponsoring the charity drive.

More country stars dropped by Universal Music Group's post-CMA party after the awards show on Wednesday night to help fight hunger and add their signatures.

The guitar will be auctioned off later this month at charitybuzz.com.