The embarrassing moment took place just before the end of DREAM THEATER‘s main set Saturday night at Arenele Romane when the frontman joined keyboardist Jordan Rudess on stage for an extended keyboard intro during the band’s 2017 “Images, Words & Beyond” tour.

LaBrie sang the first half of “Black Hole Sun”‘s opening verse correctly before losing his way and changing one of the lines to “I forgot the fucking words” prior to launching into the song’s chorus. The visibly frustrated singer could be heard saying “shit” into the microphore before the duo proceeded to play the regularly scheduled DREAM THEATER song “Wait For Sleep”, followed by “Learning To Live”, thereby concluding the “Images And Words” “Act 2” portion of the Bucharest show.

In the days since the SOUNDGARDEN singer’s tragic death, a number of artists have paid tribute by covering his songs, including MEGADETH, STONE SOUR, LIVE, THE PRETTY RECKLESS and HEART‘s Ann Wilson.

Cornell apparently committed suicide by hanging on Wednesday night (May 18) after SOUNDGARDEN played a show in Detroit. He was 52 years old.

In addition to SOUNDGARDEN, Cornell sang with AUDIOSLAVE and TEMPLE OF THE DOG, while also recording four solo studio albums and one live set on his own.