Galatasaray supporters made sure to give Barcelona a fiery welcome ahead of their Europa League showdown on Thursday night.
The Spanish side arrived in Istanbul, Turkey in the afternoon before undergoing a training session at the Nef Stadium.
They then made their way back to their hotel but any hopes of a good night's sleep soon disappeared.
A group of Galatasaray fans gathered outside the hotel in the early hours and proceeded to sing songs and set off fireworks in an attempt to ruffle their feathers ahead of the second leg.
The last-16 tie is finely poised following last week's 0-0 draw at the Nou Camp.
Barca were frustrated by the Turkish side with Frenkie de Jong going closest when he struck the post in the second half from Pierre-Emerick Aubameyang's overhead kick.
Former Swansea striker Bafetimbi Gomis thought he had earned the visitors an unlikely late win but his sublime finish was ruled out for offside.