WATCH: Tool perform 'Undertow' live for the first time in 20 years
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WATCH: Tool perform 'Undertow' live for the first time in 20 years

The last time fans got to witness the track live was on April 29th, 2002.

Tool performed 'Undertow' for the first time in two decades at their recent concert in Detroit.

'Undertow', which is the the title track from the band's debut album, hasn't been performed by the band in nearly exactly two decades. In fact according to Setlist FM, the last time fans got to witness the track live was on April 29th, 2002.

A fan uplaoded a video of the band's lead up and full live performance of the 1993 song, and although it's not the most amazing footage, it's still pretty cool to watch.

Fans who were at the concert were stoked, including this person who commented on the video:

"I was there and lost my shit. Thank you for catching this! I told buddies of mine and they were so jealous. I took my wife and my 13 and 18 yr old daughters and they had no Idea what they were witnessing that night. Epic show with the greatest musicians of their craft of our Generation."

While others pointed out that the crowd wasn't as hyped as you would expect. 

Someone commented, "Look at that dead crowd. What happened to y’all?" 

Have a watch of the performance up top.