Professional skateboarder and skateboard park philanthropist Tony Hawk was skating live at a temporary 12th and Harrison ramp today during an event to support city skateparks.

According to tipster Cyan B., he was "taking people from the audience up on the ramp who just showed up."

Up the street is the popular SoMa West Skate Park, which he donated money to a few years ago. 

@tonyhawk and the @THF doing amazing things in SF! pic.twitter.com/9Xl8g93YZh

— DLX Skateshop (@DLXskateshop) April 3, 2016

Here are a few more clips from the day. 

.@tonyhawk being amazing @thf pic.twitter.com/e9UAOYQjGw

— Jeffrey Kalmikoff (@jeffrey) April 3, 2016

@tonyhawk crushing the ramp with a #mctwist @tonyhawkfoundation

A video posted by Doug Dalton (@dougdalton) on Apr 3, 2016 at 4:26pm PDT

@tonyhawk table dancing in SF for the @tonyhawkfoundation right now.

A photo posted by Birdhouse Skateboards (@birdhouseskateboards) on Apr 3, 2016 at 4:35pm PDT