Solange Piaget Knowles (/soʊˈlɑːnʒ/), also known mononymously as Solange, is an American singer, songwriter, record producer and actress. Expressing an interest in music from an early age, Knowles had several temporary stints as a backup dancer for Destiny's Child, which featured among the members her sister, before signing with her father Mathew Knowles's Music World Entertainment label. At age 16, Knowles released her first studio album Solo Star (2002). Between 2005 and 2007, Knowles had several minor acting roles, including the direct-to-video Bring It On: All or Nothing (2006) and continued writing music for her older sister Beyoncé Knowles and for former Destiny's Child group members Kelly Rowland and Michelle Williams.

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In 2007, Knowles began to record music again. Her second studio album Sol-Angel and the Hadley St. Dreams (2008) deviated from the pop-oriented music of her debut to the Motown Sound of the 1960s and 1970s. It peaked at number nine on US Billboard 200 and received positive reviews from critics. She followed this up with the 1980s pop and R&B–inspired extended play True (2012) on Terrible Records and her imprint Saint Records. Her third studio album, A Seat at the Table (2016) was released to widespread critical acclaim, and became her first number-one album in the United States. The album's lead single, "Cranes in the Sky" won the Grammy for Best R&B Performance. Her fourth studio album, When I Get Home, was released in 2019.

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Knowles was heavily influenced by Motown girl groups and says that her first passion is songwriting. She is frequently compared by the media to her sister, Beyoncé, but Solange insists they have different aspirations and are musically different. She has been ranked by Billboard as the 100th most successful dance artist of all-time, and in 2017 was honored with the "Impact Award" at Billboard Women in Music. Her other ventures include an endorsement deal with Rimmel London and a line of hip-hop-oriented merchandise for young children. On November 16, 2014, Knowles married music video director Alan Ferguson in New Orleans, Louisiana.

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Knowles married Daniel Smith in February 27, 2004 when she was 17 and he was 19. On October 18, 2004, Knowles gave birth to their son, Daniel Julez J. Smith Jr. Knowles calls her son the greatest unplanned blessing, but has partly expressed regret that she bore a child at an early age. A song she wrote for her baby, "6 O'Clock Blues", was included on Sol-Angel and the Hadley St. Dreams. After Daniel Julez's birth, the family moved to Moscow, Idaho, where Knowles' husband continued studying in college. In October 2007, Knowles confirmed in an interview with Essence magazine that she and Smith had divorced. They co-parent the child. After the divorce, Knowles and her son moved to Los Angeles. In August 2013, Knowles announced that she and her son were moving to New Orleans, Louisiana.

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On May 12, 2014, TMZ released security video footage of Knowles physically assaulting brother-in-law Jay Z and being restrained by a security guard in an elevator at The Standard, High Line, in Manhattan, following the 2014 Met Gala. Jay Z remained passive and did not retaliate while Knowles' sister Beyoncé, who was also present, did not react to either party throughout the altercation. The footage and story went viral, but the reason for the altercation remains unknown. Matthew Knowles, however, has hinted that the incident may have been faked for attention, saying: "So you sometimes have to ignite that tour. It's called a Jedi mind trick. The Jedi mind trick fools you a lot...all I know is the Jedi mind trick. Everyone's talking about it. Ticket sales went up. Solange's album sales went up 200%!" The cause is rumored to be Jay Z's infidelity, which the couple would speak about on their albums Lemonade, 4:44, and Everything Is Love.

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On November 16, 2014, Knowles married music video director Alan Ferguson in New Orleans, Louisiana. Source.