Coachella is being sued by an Oregon music festival for not allowing its performers to take part in other music shows. The massive event will kick off on Friday, April 13.

The organizers of the event, AEG Presents, and Goldenvoice are also part of the lawsuit stating its radius clause prevents artists from playing at other festivals before, during, and after Coachella. The Oregon festival's lawyer claimed that the radius clause violates anti-trust and unfair competition laws among many other things.

Nicholas Harris and Haytham Abdulhadi, the founders of the Soul'd Out Music Festival, asked SZA to perform at their event, but the singer said that she could not do so this year. Harris and Abdulhadi reached out to Goldenvoice to ask for a waiver, but the rep refused to give them one.

This year's Coachella will run from April 13 to 15 and April 20 to 22. Other confirmed guests include The Weeknd, Eminem, and Beyoncé.

Soul'd Out Music Festival, on the other hand, will take place from April 18 to 22. Some of the artists that will perform at the latter include Erykah Badu, Wyclef Jean, and De La Soul.

Nicholas F. Aldrich, the lawyer of Soul'd Out Music Festival, released a statement regarding the matter.

"The unlawful radius clause in their contracts with Coachella as the sole reason they cannot do so," said Aldrich in reference to the artists they invited.

YouTube Will Stream Coachella This Year

In related news, Coachella will be streamed live on YouTube. This is not the first time that site will broadcast and an exclusive live stream of the event.

However, it has been confirmed that only the shows from April 13 to 15 will be available for streaming.

Top Performances At Coachella

Ahead of this year's shows, Billboard compiled the top 22 best performances at Coachella. In number 22 is Pharrell Williams' 2014 performance of "Hollaback Girl" with Gwen Stefani. Lagging behind is Pavement's "Cut Your Hair" live number.

In 2012, M83 performed "Midnight City," and the band's routine has been ranked as the top 20 best show at Coachella. Lana Del Rey also made it to number 19 with her "Summertime Sadness" performance in 2014.

Other acts that are also included on the list are Blur with "Girls & Boys," Lady Gaga with "Edge of Glory," Calvin Harris and Rihanna with "We Found Love," Oukast with "B.O.B.," Skrillex and Korn with "Get Up," and more.