Willie Nelson isn't one to shy away from controversy. In September, the country icon will join Neil Young to headline Harvest the Hope, a concert in Nebraska meant to speak out against a proposed oil pipeline.

As ABC News reports, the event, organized by Bold Nebraska will be held on Sept. 27 on a farm in northeast Nebraska, where the pipeline would be placed, running oil south from Canada to the Gulf Coast in Florida. Earlier this year, protestors carved messages into the cornfield decrying the installment of TransCanada's proposed Keystone XL pipeline.

Although TransCanada says the pipeline will have upgraded safety measures and should be allowed, critics are calling for the project to be rejected for fear that it would contaminate groundwater and contribute to higher levels of pollution. The company has already completed the southern leg of the pipeline between Oklahoma and Texas and says it is operating safely.

Performing with Nelson and Young will be Nelson's son, Lukas Nelson, Native American hip-hop artist Frank Waln and local Nebraska artists Stopping the Pipeline Rocks All-Stars, who recorded a benefit album in opposition of the Keystone XL pipeline last summer.

Young and Nelson have performed together for a good cause many times before. In 1985, they co-founded the first Farm Aid concert in support of local farmers in America -- the concert has since grown to an annual event.

Tickets for Harvest the Hope are on sale now and can be purchased on Bold Nebraska's website.

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