"What's Your Number?" is a single by the American

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 hip hop

Hip hop music

Hip hop music, also called hip-hop, rap music or hip-hop music, is a musical genre consisting of a stylized rhythmic music that commonly accompanies rapping, a rhythmic and rhyming speech that is chanted...

 group Cypress Hill

Cypress Hill

Cypress Hill is an American hip hop group from South Gate, California. Cypress Hill was the first Latino hip-hop group to have platinum and multi-platinum albums, selling over 18 million albums worldwide...

 featuring Tim Armstrong

Tim Armstrong

Timothy Lockwood Armstrong is an American musician, songwriter, and record producer, best known for his work with punk rock bands Rancid, Operation Ivy, Downfall, and the Transplants. He is also the owner and operator of Hellcat Records.-Personal life:Armstrong was born November 25, 1965 and was...

. It was released in 2004 and featured a rerecorded bassline from "The Guns of Brixton

The Guns of Brixton

"The Guns of Brixton" is a song by the English punk rock band The Clash. It was written and sung by bassist Paul Simonon, who grew up in Brixton, south London...

" by The Clash

The Clash

The Clash were an English punk rock band that formed in 1976 as part of the original wave of British punk. Along with punk, their music incorporated elements of reggae, ska, dub, funk, rap, dance, and rockabilly...

.

Video

The music video for the song was directed by Dean Karr

Dean Karr

Dean Karr is an American photographer and music video, commercial, and film director.-Official biography:Director/Photographer Dean Karr's signature style, often copied but never...

 and had guest appearances from Slash

Slash (musician)

Saul Hudson , known by his stage name Slash, is a British-American musician and songwriter. He is best known as the former lead guitarist of the American hard rock band Guns N' Roses, with whom he achieved worldwide success in the late 1980s and early 1990s. During his later years with Guns N'...

, Everlast

Everlast (musician)

Erik Francis Schrody , better known by his stage name Everlast, is a Grammy Award-winning American rapper and songwriter, known for his solo hit "What It's Like" and as the front-man for rap group House of Pain. He is also part of the hip-hop supergroup La Coka Nostra, which consists of members of...

, Tim Armstrong

Tim Armstrong

Timothy Lockwood Armstrong is an American musician, songwriter, and record producer, best known for his work with punk rock bands Rancid, Operation Ivy, Downfall, and the Transplants. He is also the owner and operator of Hellcat Records.-Personal life:Armstrong was born November 25, 1965 and was...

, Travis Barker

Travis Barker

Travis Landon Barker is an American musician, producer and entrepreneur, most noted as the drummer for the American pop punk band Blink-182, as well as the alternative rock band +44, the rap rock band The Transplants, and the alternative rock band Box Car Racer. He was a frequent collaborator with...

, Nadja Peulen, Xzibit

Xzibit

Alvin Nathaniel Joiner , better known by his stage name Xzibit , is an American rapper, actor, and television host. He is known as the host of the MTV show Pimp My Ride, which brought him mainstream success...

, Gary Dourdan

Gary Dourdan

Gary Robert Dourdan is an American actor. He is best known for portraying Warrick Brown on the television series CSI: Crime Scene Investigation.-Early years:...

, Fredwreck

Fredwreck

Farid Karam Nassar, better known as Fredwreck is a record producer from Los Angeles, California. He got his big break when he became a producer for Dr. Dre's newly founded Aftermath Records label, and went on to work with Snoop Dogg's record label Dogghouse Records and became a known producer on...

 and Wilmer Valderrama

Wilmer Valderrama

Wilmer Eduardo Valderrama is an American actor and television personality, known for the role of Fez in the sitcom That '70s Show, hosting the MTV series Yo Momma, and voicing the character of Manny in the children's show Handy Manny.-Early life:Valderrama was born in Miami, Florida the son of...

.

Chart Performances

"What's Your Number got into the top ten in the RIANZ

Recording Industry Association of New Zealand

The Recording Industry Association of New Zealand is a non-profit trade association of record producers, distributors and recording artists who sell music in New Zealand...

 charts getting to #8, the groups fourth top 10 in New Zealand. At that time it was the groups second song to chart in the Modern Rock chart, peaking at number #23.