[6] Onweagba (a native of Isuikwuato, Abia State) grew up in the suburbs of Lagos, Nigeria, with her two brothers and sisters.
She has walked the runways for Gucci, Carolina Herrera, John Galliano, Missoni, Tommy Hilfiger, Chanel, Bottega Veneta, Christian Dior, Alessandro Dell'Acqua, Jeremy Scott, Helmut Lang, Fendi, Anna Sui, Givenchy, Kenzo, Giorgio Armani, Céline, Nina Ricci, and Diane Von Furstenberg.
She has appeared in advertising campaigns for Gianfranco Ferré, Lancôme, Ann Taylor, Clinique, Bergdorf Goodman, Nordstrom, Macy's, Banana Republic, Gap, Express, L'Oreal, Coca-Cola, as well as working for Victoria's Secret in print walking for six years in the annual Victoria's Secret Fashion Show.
She has worked with notable photographers such as Steven Meisel, Nick Knight, David LaChapelle, and Patrick Demarchelier.
Their son Ugo Ugochukwu is signed to the McLaren Driver Development Programme[15] and was the 2020 FIA European junior karting champion.