Clay Helton has been on and off the hot seat during his first six seasons as head coach at Southern California, but he’s managed to keep his job.

But after the No. 14 Trojans lost 42-28 to Stanford at home on Saturday, the calls for his firing erupted on social media, including from a former USC star.

“I’m so pissed , I can no longer FIGHT ON for Him ….. Period embarrassing,” wrote Keyshawn Johnson, who played two seasons at wide receiver at USC before the New York Jets took him No. 1 overall in the 1996 NFL Draft.

Johnson once was one of Helton’s fiercest supporters, calling for his promotion from assistant coach before his hiring.