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Karen Lee Orzolek (born November 22, 1978), known professionally as Karen O, is a South Korean-born American singer, songwriter, musician, and record producer. She is the lead vocalist for American rock band Yeah Yeah Yeahs.

Lux Prima is a collaborative album by Karen O and Danger Mouse, released in March 2019. The duo blends psych rock with elements of 1960s orchestral pop, 1990s trip hop, disco, funk, soul, and lounge-pop, creating a sprawling and cinematic musical experience under BMG Records.

Kari Brooke Jobe (born April 6, 1981) is an American contemporary Christian music singer and songwriter.

Karmin was an American pop duo consisting of Amy Renee Noonan and Nick Noonan. Starting as a novelty act that released covers on YouTube, they signed in 2011 with Epic Records.

Kasabian are an English rock band formed in Leicester in 1997. The band's original members were vocalist Tom Meighan, guitarist and vocalist Sergio Pizzorno, guitarist Chris Karloff, and bassist Chris Edwards. The band's line-up was completed by drummer Ian Matthews in 2004 after a string of session drummers.

Ryan Gary Raddon (born February 25, 1971), better known by his stage name Kaskade, is an American DJ, record producer and remixer.

Katriana Sandra Huguet (born July 29, 1990), better known by her stage name Kat Dahlia (formerly Kat Hue), is a Cuban-American recording artist from Miami, Florida. Dahlia, a singer, songwriter and rapper, is known for her "razor sharp" lyrics and her "unique, aggressive flow".

Katerina Alexandre Hartford Graham (born September 5, 1989) is a Swiss-born American actress, singer, dancer and model.

Kate Bush, born July 30, 1958, is an influential English singer-songwriter. Her debut single, "Wuthering Heights," topped the UK chart in 1978. She has multiple Top 40 singles, including hits like "Running Up That Hill." Bush, known for her unique style, produced albums independently and received numerous awards.

Kate Marie Nash (born 6 July 1987 in London) is an English singer-songwriter and actress, operating in the genres of indie pop and indie rock.

Kate Elizabeth Voegele (born December 8, 1986) is an American singer-songwriter and actress.

Katharine Hope McPhee Foster (born March 25, 1984) is an American actress, singer, and songwriter. She was the runner-up of American Idol in May 2006.