The Pirot District (Пиротски Oкруг, Pirotski Okrug) expands in the south eastern parts of Serbia. It has a population of 92,277. Its seat is in the city of Pirot.

It encompasses the municipalities of:

The first mention of Pirot are found already in the second century A.D. In its vicinity is the church from the thirteenth century: the Church of St. Petka, and the monastery of St. John the Theologist from the late fourteenth century displays a fine example of the Serb medieval architecture.

Medicinal water from the Zvonci Spa (Zvonačka Banja), a health resort, was used already in the ancient times, and natural beauties of this region are renounced throughout Serbia. The oldest craft, today an industry, is Rug-making: the weaving trade, by which this region has gained its world-wide fame.

The most of the facilities of the Pirot economic organizations are located in the industrial zone: the "Tigar" rubber industry, the "Prvi maj" textile industry, and the "Suko" paints and varnishes industry.

Pirot (Serbian: Пирот) is a town and municipality located in south-eastern Serbia. According to 2011 census, the town has a total population of 38,432, while the population of the municipality is 57,911. The town is the administrative center of the Pirot District.

The municipality has rich geographical features, including the mountains of Stara Planina, Vlaška Planina, Belava, Suva Planina, and rivers which flow through the town, including Nišava, Jerma, Rasnička Reka, Temštica and the Visočica, and four lakes, the Zavoj Lake, Berovacko Lake, Krupac Lake and Sukov Lake.

The town has a rich culture, with notable Orthodox church buildings, including the Church of St. Petka, and the monastery of St. John the Theologian from the late fourteenth century, both of whom display a fine example of medieval Serbian architecture. Pirot is known for its traditional woven carpet, the Pirot Kilim (Pirotski ćilim).

The municipality has over 70 settlements, among Pirot itself. In 2011, the municipality has 57,911 inhabitants.

Katheryn Elizabeth Hudson (born October 25, 1984), known by her stage name Katy Perry, is an American singer, songwriter and actress. Perry grew up with gospel music, and during her first year of high school she pursued a music career as Katy Hudson, releasing her first studio album called Katy Hudson which failed to chart. She recorded a solo album later, which was never released. After signing with Capitol Music Group in 2007, her fourth record label in seven years, she adopted the stage name Katy Perry.

She first gained recognition with the release of her first mainstream album, One of the Boys in 2008, which spawned three Billboard Hot 100 top-ten songs—"I Kissed A Girl", "Hot n Cold" and "Waking Up In Vegas". Perry supported the album with her Hello Katy Tour. In 2010, her third studio album, Teenage Dream (2010), which topped the Billboard 200 chart, and spawned five number one singles—"California Gurls", "Teenage Dream", "Firework", "E.T." and "Last Friday Night (T.G.I.F.)"—Teenage Dream was the only album (after Michael Jackson's Bad)—to do so, and the first female in history to achieve this milestone. She embarked on the California Dreams Tour, which grossed nearly $60 million worldwide. Perry re-released the album under the name of Teenage Dream: The Complete Confection on March 26, 2012, and the re-release has already spawned the number-one single "Part of Me".