Teairra Marí (born Teairra Maria Thomas on December 2, 1987 in Detroit, Michigan) is an American R&B singer, who is best known for her 2005 hits "Make Her Feel Good" and "No Daddy."

According to a Billboard.com album review Teairra Mari has a 3.2 (C3-E6) octave vocal range.

Marí began her career at age 12, recording in her cousin's basement, in Holland, Michigan. She soon caught the attention of Big Mike, Ed K and Helluvah of Detroit's K.I.S.S. Productions, which developed her from the age of 13 onward. Under Big Mike's guidance, Marí spent every free moment in the studio, working with producers and songwriters like Helluvah, Disco D, Big Mike, Chaz M, Detail, Lyriq, AK, and J.R.

K.I.S.S. Productions arranged for Marí to collaborate with artists such as Ray J, J-Kwon, Lola Damone, and Bee and for Marí to appear on Detroit's Fox 2 Morning Show and UPN 50 Sports Rap. In October 2003, the label released Teairra's first album, an EP called Get Away, which included the title track plus four more songs (currently available only on this album) and became a local success.

In the meantime Teairra attended Detroit High School for The Fine and Performing Arts, and was a vocal major, performing in many of the school's talent showcases.

At the age of 16, K.I.S.S.' Big Mike felt that Marí was ready for the big time, and he brought her in front of a who's who of label execs. Candy Tookes, a friend of Big Mike, introduced the pair to industry veteran Daryl Simmons in Atlanta, Georgia. Simmons then shared Marí's K.I.S.S. Productions-produced demo disc with Antonio "L.A." Reid, Chairman of The Island Def Jam Music Group. After hearing Teairra Marí perform live, Reid offered her a contract on the spot.

Marí worked with Jay-Z, in his first collaboration project since becoming president of Def Jam Records, to create "Make Her Feel Good", the hit single from her debut album on Roc-A-Fella/Def Jam. The second single "No Daddy" had a video that led to commercial success on MTV. The video spent 16 days on Total Request Live, peaking at #4.Teairra Mari's debut album, Roc-A-Fella Presents: Teairra Mari, was released in 2005.

She later appeared LL Cool J.'s "Preserve The Sexy." She also makes cameo appearances in music videos by 3LW ("Feelin' You") and Sammie ("You Should Be My Girl.") In 2006, Teairra Mari left Roc-A-Fella/Def Jam Records, and signed with Interscope Records.

Teairra Mari is currently working on her sophomore album Re-Introducing...... Teairra Mari, rumored to be released early May, 2007, at the time there are no leaked tracks from the album. The original album title Second Round was changed because once she left Def Jam, she recorded more tunes and felt that "Second Round" was a bit too cliche. Her first single, which still hasn't been decided, has a confirmation date to be released in March, 2007 by her management and record label. Another rumored track Play Me will not appear on the album. Also Missin' U is not on the album, it was recorded in 2002 when Teairra Mari was only 15.