Aerosmith star Steven Tyler forgot the words to his track Crazy when he joined buskers for a singalong in Lithuania.
The rocker surprised two female street performers in Vilnius, Lithuania by joining them for a rendition of the 1994 classic during time off from the band's European tour.
A video emerged this week (beg19May14) showing Tyler singing alongside the violinist and accordion player, but when the musicians launch into the second verse, the rocker appears to forget the words.
He mumbles incoherently before completing the song with theatrical wails and screeches.
Aerosmith are due to continue their tour in Moscow, Russia on Saturday (24May14).