Former Journey lead singer Steve Perry gave one American Idol contestant the surprise of a lifetime this weekend after her performance of the band’s hit “Don’t Stop Believin'”.

Perry was in the audience during Gabby Barrett’s final performance on Sunday night’s episode, although Barrett wasn’t aware of it until after she finished the song.

“Oh my gosh, I know who that is,” screamed Barrett as Perry laughed from the audience.

“She was amazing, that’s my critique,” said Perry when invited by the show’s judges to give his opinion. He also claimed it was “the most amazing version” he’s ever heard.

Watch the video below.

Gabby Barrett is one of the season’s 3 final contestants.