By Nick Romano
Updated August 21, 2016 at 04:00 PM EDT
Credit: @sllollaryee via Instagram

Red Hot Chili Peppers bassist Flea paid a visit to Koko, a gorilla taught American Sign Language, this weekend — and as it turns out, the animal knows her way around a bass.

In a clip from the meeting, Flea lets Koko handle his instrument, and watches her strum the strings and fiddle with the knobs. “This is the greatest thing that could ever happen,” he says. “This is the day I’ll never forget in my life.”

“Koko rocks a flea bass like it ain’t nuthin,” Flea wrote on Instagram along with photos of their time together. The musician also posted a link to a Bonfire Funds campaign to support Koko and The Gorilla Foundation, which seeks to raise awareness about poachers and endangered species.

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