The Foo Fighters brought out a special guest over the weekend to pay tribute to Sinéad O鈥機onnor.

During an appearance at Japan鈥檚 Fuji Rock Festival, Alanis Morissette joined the band to perform O鈥機onnor鈥檚 1987 single, 鈥淢andinka.鈥

The Irish singer died last week after being found unresponsive at a home in London. She was 56.

No cause of death has been released, but London police have said it was not being treated as suspicious.

At the festival, Foo Fighter鈥檚 frontman Dave Grohl announced, 鈥淲e鈥檙e singing this song for a reason tonight.鈥

鈥淵es, for a beautiful woman with high intelligence and deep empathy, way ahead of her time, who is no longer with us,鈥 Morissette added. 鈥淭his is for her.鈥

It鈥檚 just one of many expressions of grief and tribute to O鈥機onnor.

Singers Pink and Brandi Carlile performed a cover of O鈥機onnor鈥檚 hit 鈥淣othing Compares 2 You,鈥 (which was written and composed by Prince) during Pink鈥檚 concert in Cincinnati after O鈥機onnor鈥檚 death was announced.