They Don't Know is the second single from Houston

Houston, Texas

Houston is the fourth-largest city in the United States, and the largest city in the state of Texas. According to the 2010 U.S. Census, the city had a population of 2.1 million people within an area of . Houston is the seat of Harris County and the economic center of , which is the ...

 based rapper Paul Wall

Paul Wall

Paul Michael Slayton , better known by his stage name Paul Wall, is an American rapper. He is currently affiliated with Swishahouse Records, having released several albums under the label as well as...

's second album

Album

An album is a collection of recordings, released as a single package on gramophone record, cassette, compact disc, or via digital distribution. The word derives from the Latin word for list .Vinyl LP records have two sides, each comprising one half of the album...

 The Peoples Champ

The Peoples Champ

The Peoples Champ is the major label debut album by rapper Paul Wall. The album debuted at number one on the U.S. Billboard 200 chart, selling 176,000 copies its first week. This is his second studio album overall and first to reach #1 on the Billboard 200. This album is also available in a Chopped...

. The album's version of the song features Mike Jones. There is also a remix that features Lil Keke, Slim Thug

Slim Thug

Stayve Jerome Thomas , better known as Slim Thug, Boss Hogg or Thug Boss, is an American rapper. He gained mainstream attention for his contribution to the popular single from rapper Mike Jones, "Still Tippin'"....

, Big Hawk

Big Hawk

John Edward Hawkins , better known as H.A.W.K. or Big Hawk was an American rapper from Houston, Texas and a founding member of the late DJ Screw's rap group the Screwed Up Click.-Biography:...

, Bun B

Bun B

Bernard Freeman better known by his stage name Bun B, is an American rapper and was one half of the southern hip hop duo UGK . He is also a guest lecturer at Rice University located in Houston, Texas...

, and Trae

Trae

Frazier Thompson III, better known by his stage name Trae, is an American rapper from Houston, Texas. He is a part of the underground rap collective Screwed Up Click. Trae and Z-RO, along with Dougie D, are the founding members of the group Guerilla Maab...

. The video is a composite of both versions of the song featuring both Bun B & Mike Jones, where Paul Wall's second verse is shortened for Bun B's verse. Lil Keke, Slim Thug and Killa Kyleon made cameo appearances in the video.
An older version of the song was featured on Paul Wall's first solo album, Chick Magnet

Chick Magnet

Chick Magnet is an independent album by rapper Paul Wall, an American rapper and DJ from Texas. It was his first solo album. It was released on February 24, 2004, on the Paid in Full Records label...

.

Samples

The chorus is made of various vocal samples:

• "They don't know what that star about, they don't know what that barre about, they don't know what that candy car about or smokin' that jar about" - Sampled from UGK
  UGK
  UGK was an American hip hop duo from Port Arthur, Texas formed in 1987 by the late Chad "Pimp C" Butler . He then joined with Bernard "Bun B" Freeman, who became his longtime partner...
  
  's "Wood Wheel".
• "Texas is the home of the players and pimps" - Sampled from Lil Keke's "Still Pimping Pens".
• "Showin' naked ass in the great state of Texas" - Sampled from Lil Keke's "Pimp Tha Pen".
• "3rd coast born and we were Texas raised" - Sampled from Fat Pat
  Fat Pat
  Patrick Lamark Hawkins , better known by his stage name Fat Pat , was a rapper from Houston, Texas who was a member of DEA with his brother John "Big Hawk" Hawkins and DJ Screw, and an original member of the Screwed Up Click.Wreckshop Records released his first two albums, Ghetto...
  
  's "3rd Coast Raised".
• "Texas motherfucker that's where I stay" - Sampled from UGK
  UGK
  UGK was an American hip hop duo from Port Arthur, Texas formed in 1987 by the late Chad "Pimp C" Butler . He then joined with Bernard "Bun B" Freeman, who became his longtime partner...
  
  's "Murder".