LINCOLN, Neb. — Congressman Lee Terry and oil pipeline fighters are duking it out again, this time over a mock playlist Terry’s people sent out last week to poke fun at the anti-pipeline prairie concert Willie Nelson and Neil Young will play later this month.

The ribbing began just a few days after Bold Nebraska announced the crooners would play a Sept. 27 benefit concert near Neligh. Unlike their previous concerts to benefit farmers, this time the Harvest the Hope concert will raise money to fight the proposed Keystone XL pipeline, which would carry tar sands oil from Canada to Texas.

Days after the concert was announced, the pro-pipeline Consumer Energy Alliance came up with a suggested playlist for the concert that included slightly altered songs such as “Mamas, Don’t Let Your Babies Grow Up to Build Pipelines” and “Keep on Blocking Pipelines in the Free World.”