Neil Young celebrated his 71st birthday on Saturday by performing for Dakota Access Pipeline protesters at Standing Rock Reservation.

“Got my birthday wish today,” Young writes in a Facebook post.  “My girl took me to #StandWithStadingRock.”

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Young traveled to Standing Rock to walk around the protest site and perform music for protesters who have been camped out there in opposition to the pipeline.  The “Heart Of Gold” singer has been outspoken in his support for anti-pipeline protesters and has voiced his concerns about the negative environmental effects of the project.

In September, Young recorded a song bout the Keystone XL Pipeline called “Indian Givers” which makes reference to Native American protester Dale American Horse Jr. who chained himself to a digger at a pipeline worksite in North Dakota.