Usher and Darius Rucker have joined the lineup for the concert for Oklahoma relief organized by Blake Shelton, according to The Hollywood Reporter.
The "Healing in the Heartland: Relief Benefit Concert" will air 9 p.m. May 29 on NBC.
The show will also feature performances from Shelton, his wife Miranda Lambert, Luke Bryan, Rascal Flatts, Ryan Tedder of OneRepublic, Reba McEntire and Vince Gill. Shelton's "The Voice" partner, Usher, expresssed interest in being involved with the benefit when Shelton, an Oklahoma native, first announced his plan to organize a performance.
Tickets for the concert, being held at at the Chesapeake Energy Arena in Oklahoma City, sold out in less than five minutes Saturday morning, according to Rolling Stone.
Proceeds from the benefit will help the United Way of Central Oklahoma May Tornadoes Relief Fund, Rolling Stone says. Money will help with immediate relief for the tragedy caused by tornadoes that hit Oklahoma last week leaving at least 24 people dead and 240 injured.
Shelton and wife Miranda Lambert performed an emotional rendition of Shelton's song "Over You" on "The Voice," following the tragedy to raise money for the Red Cross. Both Lambert and Shelton live in Oklahoma.
"(Monday) was a tough day for any Oklahoman," Shelton said, according to CNN. "And you know, Miranda and I are both residents of Oklahoma. I was born and raised in Oklahoma there and Miranda lives there now. It was tough to land here in LA and look at (media coverage) on the phone and go, 'Oh my gosh, we just left there.'"
