A pencil skirt is a slim-fitting skirt with a straight, narrow cut. Generally the hem falls to, or just below, the knee and is tailored for a close fit. It is named for its shape: long and slim like a pencil.

The pencil skirt is usually worn either as a separate piece of clothing or as part of a suit. The slim, narrow shape of a pencil skirt can restrict the movement of the wearer so pencil skirts often have a slit at the back, or less commonly at the sides. Sometimes a pleat, which exposes less skin, is used instead of a slit. The classic shoes for wearing with a pencil skirt are high heels, with sheer stockings or tights. Back-seamed hosiery matches well, recalling the classic pencil-skirt era of the 1950s.

Pencil skirts can also be worn with flats for a more casual, youthful vibe that echoes the 1960s. Pencil skirts and loafers are classic "Prep."

Narrow-fitting skirts have a long history in western fashion. The predecessor to the pencil skirt is the hobble skirt, a pre-WWI fad inspired by the Ballets Russes. This full-length skirt with a narrow hem seriously impeded walking.

"A Whiter Shade of Pale" is the debut song by the British band Procol Harum, released 12 May 1967. The single reached number one in the UK Singles Chart on 8 June 1967, and stayed there for six weeks. Without much promotion, it reached #5 on the US charts, as well. It is one of the fewer than 30 all-time singles to have sold 10 million (or more) copies worldwide.^{[citation needed]}

With its haunting Bach-flavoured instrumental melody, soulful vocals, and unusual lyrics—by the song's co-authors Gary Brooker, Keith Reid, and Matthew Fisher-- "A Whiter Shade of Pale" reached #1 in several countries when released in 1967. In the years since, it has become an enduring classic. It was the most played song in the last 75 years in public places in the UK (as of 2009), and the United Kingdom performing rights group Phonographic Performance Limited in 2004 recognised it as the most-played record by British broadcasting of the past 70 years. Also in 2004, Rolling Stone placed "A Whiter Shade of Pale" #57 on its list of the 500 Greatest Songs of All Time.