Darius Rucker's annual 'Darius and Friends' benefit concert for St. Jude Children's Research Hospital has been pretty successful since its inception in 2009. In fact, the event has been so successful that this year, 'Darius and Friends' is back with an awesome lineup for the fourth year in a row.

On Monday (June 3), Luke Bryan, Sam Bush, Randy Houser, Dustin Lynch, Justin Moore and others will perform together at Nashville's Wildhorse Saloon.

"I always look forward to this event each year, and I’m so happy to have Luke, Sam, John, Randy, Dustin, Justin, and of course my hero, Radney [Foster], join me to help raise funds for St. Jude," Rucker said in a statement. "A few years ago I visited the St. Jude campus in Memphis and instantly became a ‘true believer’ in everyone there and the work they do to help treat kids and cure disease. I am happy to help raise funds for such a worthwhile cause and thrilled that some of my friends can join me."

Now that the 'Darius and Friends' concert has gained some traction in recent years, it's sort of like an unofficial beginning to CMA Music Festival Week. Since it began, the benefit concert has grown to include a charity auction and a celebrity golf tournament and has raised more than $225,000 for St. Jude Children’s Research Hospital.

After various country stars bring down the house at the Wild Horse Saloon on Monday night, 'Darius and Friends' will hold a celebrity golf outing Tuesday. Country music's celebrity golfers will include Jay DeMarcus and Joe Don Rooney from Rascal Flatts, Colt Ford, JT Hodges, Charles Kelley from Lady Antebellum, Lynch, Moore, David Nail and more in 2013.

For more information about 'Darius and Friends,' click here.