Sussex Police is hoping to trace a man who called himself 'Will', and is suspected of raping a woman in her home in May.
Detectives in Brighton said the 26-year-old victim met the man in Sticky Mike’s Frog Bar, Middle Street, Brighton, late on the evening of Saturday May 19, the weekend of Brighton's Great Escape music festival.
A police spokesperson said: "He was with friends at the time, but left them and went with her to her flat nearby later that night, where he raped her before leaving in the morning.
"He is described as white, with light mousey brown short hair, a full beard, slim, around 5’8-5’9, with silver piercings on his face. he called himself Will.
"They went by taxi to her home address where offence took place.
"When he left he said he was going to the railway station, and said he lived in London, but that has not been confirmed."
Detective Constable Suzy MacLintock said; "Do you recognise this man? Do you remember being in Sticky Mike's that night? It was very busy, but the silver facial piercings might just jog your memory.
"If you can help in any way please contact us online or call 101, quoting serial 435 of 24/05."
You can also contact the independent charity Crimestoppers anonymously on 0800 555 111.