It commenced on Nova Television on September 16, 2012, and lasted for two months, ending on November 17, 2012.

Niki Kanchev returned as the show's main presenter for the Live shows on Monday on Wednesday (evictions and nominations, respectively), with Aleksandra Sarchadjieva being the presenter for the daily episodes.

VIP Brother 4 finished on Day 63, making it the longest celebrity edition of the format in Bulgaria so far.

Orlin Pavlov won with Dimitar Kovachev "Funky" as the runner-up.

On March 27, 2012 Endemol announced that a deal with Nova TV had been finalized for another two seasons to be aired.

Aksinia Chenkova is a pop singer and a former Star Academy participant.

Big Brother gave her a secret mission to make strange comments to the other Housemates, otherwise they would not be given their suitcases.

She entered the House on Day 11 with a secret mission to convince the other Housemates that she is Sofia, a girl who had a controversial break-up with a German prince.

Ludmilla Diakovska "Lucy" is a pop singer from the girl band No Angels.

His former girlfriend Yana Akimova entered six years later in VIP Brother 10 in 2018 with her husband Petko Dimitrov.

Zlatka Dimitrova is a model, actress, former Miss Playmate and former girlfriend of Blagoy.

On September 9 it was officially announced that Pamela Anderson entered the House on the show's launch night.

She and her sisters, who were also participants in the third season of Big Brother in 2006, entered the House on Day 37.