Oklahoma’s largest music conference and festival makes a big announcement on Tuesday. The folks from D-Fest announced more performing artists, along with this year's keynote speaker, Ken Abdo from the Grammy Foundation.

"This is great for Oklahoma and huge for D-Fest to bring the Grammy Foundation to D-Fest to educate our artists that are performing and educate the consumers that are buying tickets that want to know more about the music business," D-Fest founder Tom Green said.

Oklahoma music stars The Flaming Lips and Leon Russell will headline this year's D-Fest. They'll play, along with 150 other performers, on 13 downtown Tulsa stages this July 27th and 28th.

You can find out more, and buy tickets through D-Fest’s website,

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