One on One is an American sitcom

Situation comedy

A situation comedy, often shortened to sitcom, is a genre of comedy that features characters sharing the same common environment, such as a home or workplace, accompanied with jokes as part of the dialogue...

 that aired on the now-defunct UPN from its September 3, 2001 premiere until May 15, 2006. The series stars Flex Alexander

Flex Alexander

Mark Alexander Knox , better known as Flex Alexander or Flex, is an American actor, comedian and dancer.-Early life:Born in New York City in Harlem, Alexander is the son of Alethia Knox and Robert Whitehead....

 as a single sportscaster, who becomes a full-time dad when his ex-wife decides to accept a job out of the country and his teenage daughter Breanna (Kyla Pratt

Kyla Pratt

Kyla Alissa Pratt is an American actress and singer.-Early life:Pratt was born in Los Angeles, the oldest of five children of Kecia Pratt-McCullar, a schoolteacher, and Johnny McCullar, a semi-professional basketball player....

) moves in with him. The series was based in Baltimore for the first four seasons before changing settings to Los Angeles

Los Angeles, California

Los Angeles , with a population at the 2010 United States Census of 3,792,621, is the most populous city in California, USA and the second most populous in the United States, after New York City. It has an area of , and is located in Southern California...

 for the final season.

The series featured numerous celebrities and athletes including Lil Zane

Lil Zane

Zane Copeland, Jr. , better known as Zane , is a rapper born in Yonkers, New York and raised in Atlanta, Georgia...

, Chris Brown, Brave from RichGirl

RichGirl

RichGirl was an American R&B girl group consisting of four members, Audra, Brave, Lyndriette and SeVen. The group was formed with the help of record producer Rich Harrison, and is managed by Tina Davis...

, Lil' Romeo, Eve

Eve (rapper)

Eve Jihan Jeffers , is an American rapper, songwriter, record producer and actress. Her first three albums have reached a total of over 8 million albums sold worldwide. She has also achieved success in fashion as she started a clothing line titled "Fetish." She won a Grammy Award in 2002 for the...

, Lloyd

Lloyd (singer)

Lloyd Polite, Jr. , who performs under the mononym Lloyd, is an American R&B recording artist, who experienced as a member of the group N-Toon before embarking on a solo career in 2004....

, Floetry

Floetry

Floetry was a British R&B duo comprising Marsha Ambrosius and Natalie Stewart . The group recorded two studio albums, one live album, and sold over 800,000 records worldwide. Formed in 1999, Floetry started on the performance poetry stage.In 2002, the duo released their first album entitled, Floetic...

, Angie Stone

Angie Stone

Angie Stone is an American R&B and soul singer-songwriter, record producer, and occasional actress. She has been nominated for three Grammy Award. She is more successful on the charts R&B charts, with four Top 10 albums, forms including a number one album and 10 singles on the R&B chart,...

, Mario, Omarion

Omarion

Omari Ishmael Grandberry better known as Omarion, is an American R&B singer, actor, songwriter, record producer, dancer, and former lead singer of the R&B group, B2K. Omarion was spotted at a young age by a manager, Christopher B. Stokes, who took a liking to his vocal abilities...

, Brandy

Brandy Norwood

Brandy Rayana Norwood , known professionally as Brandy, is an American singer-songwriter, producer, actress, and dancer. In 2009, she introduced her rap alter-ego Bran'Nu....

, Solange Knowles

Solange Knowles

Solange Piaget Knowles , who performs under the mononym Solange, is an American singer-songwriter, actress, model, dancer, and DJ. Knowles was born and raised in Houston, Texas along with her older sister singer Beyoncé, a former member of R&B group Destiny's Child...

, Marques Houston

Marques Houston

Marques Barrett Houston is an American R&B singer, songwriter, rapper, and actor. A member of the R&B singing group Immature/IMx until 2002, he went solo in 2003. He is also the cousin of J-Boog, former member of the R&B/Hip-Hop group B2K....

, Smokey Robinson

Smokey Robinson

William "Smokey" Robinson, Jr. is an American R&B singer-songwriter, record producer, and former record executive. Robinson is one of the primary figures associated with Motown, second only to the company's founder, Berry Gordy...

, Avant

Avant

Myron Avant , better known as Avant is an American R&B singer-songwriter. He is best known for hits such as "Separated" , "My First Love," which one version features KeKe Wyatt, and "Read Your Mind"...

, New Edition

New Edition

New Edition is an R&B group formed in Boston in 1978. The group reached its height of popularity during the 1980s. They were the progenitors of the boy band movement of the 1980s and 1990s and led the way for groups like New Kids on the Block, Boyz II Men, Backstreet Boys and 'N Sync...

, Jennifer Freeman

Jennifer Freeman

Jennifer Nicole Freeman is an American actress, often credited as Jennifer N. Freeman. She was born in Los Angeles, California.-Career:...

, Method Man

Method Man

Clifford Smith , better known by his stage name Method Man is an American hip hop artist, record producer, actor and member of the hip hop collective Wu-Tang Clan. He took his stage name from the 1979 film The Fearless Young Boxer, also known as Method Man. He is one half of the rap duo Method Man...

, Bobby V and Lisa Leslie

Lisa Leslie

Lisa Deshaun Leslie-Lockwood is a former American professional women's basketball player in the WNBA. She is a three-time WNBA MVP and a four-time Olympic gold medal winner...

, among others.