Sade (born Helen Folasade Adu on January 16, 1959 in Ibadan, Nigeria) was never jailed, however she was arrested in February of 1997 when she failed to pull over for police in Jamaica.
Some months later (after failing to appear in court to face those charges) an arrest warrant was issued. The warrant was eventually "stayed," when she was able to prove that her child was in the hospital, making it impossible for her to attend the hearing.
Despite being a recluse in Cotswolds in the UK, the Daily Mail is reporting that she is outselling Adele here in the US. In fact Forbes magazine just listed Sade as one of the top 10 Highest paid women in Music today; she's ranked #8, making $33 million, just behind Madonna at #9 who's making $30 million. Interestingly, Adele is still edging her, at #7 with $35 million coming in this year.