Steve Perry had a very important lesson for Giants fans: Do not, for any reason, stop believing

When the Giants and Nationals traveled to San Francisco for Game 3 of the NLDS, there were some big stars on hand. Daniel Bryan led a pregame "YES! YES! YES!" chant. Jackie Greene performed the national anthem.

And in the eighth inning, Steve Perry led stadium-wide "Don't Stop Believin'" karaoke.

It was something exciting for the Giants fans with their team down 3-0 late.

Perry hasn't been Journey's front man since 1998, but we bet he still has some pipes. And if Monday's from-the-stands performance is any indication, the man still knows how to pump up a crowd:

The Giants ended up losing 4-1 (Some will win, some will lose, after all) but they're still up two games to one on the Nats, and have the chance to lock things up at home Tuesday night. Here's hoping Perry reinforced a very important lesson for the Giants: Do not, under any circumstances, stop believing in yourselves.

It goes on and on and on and on … wait, no, that was Game 2 of this series.