Al B. Sure! (born Albert Brown, 4 June 1969, Boston, Massachusetts) is an American singer-songwriter, and record producer. He grew up in Mount Vernon, New York and during the late 1980s, Al B. Sure! enjoyed a brief run as one of New jack swing’s most popular romantic singers and producers. He is known for his trademark unibrow.

Brown was a star football quarterback, at Mount Vernon High School in New York, who rejected an athletic scholarship to the University of Iowa to pursue a music career. In 1987, Quincy Jones selected Brown as the first winner of the Sony Innovators Talent Search. Subsequently, Brown went on to work with Jones on several projects, most notably the platinum single "Secret Garden" from Jones' double platinum album Back on the Block. On this recording, Brown was one of a quartet with Barry White, El DeBarge, and James Ingram.

His debut album from 1988, In Effect Mode, sold more than two million copies, topping the Billboard R&B chart for seven straight weeks. The album included his memorable single "Nite and Day", which topped the R&B singles chart and reached #7 on the Billboard Hot 100. He received numerous Grammy and American Music Award (AMA) nominations, and won an AMA for Best New R&B Artist. He also received several Soul Train Award nominations, and won the award for Best New Artist. He also won several New York Music Awards. In addition, Al's 900 phone line was third in generating revenue, following those for New Kids on the Block and Run-D.M.C..

As a writer and producer, Brown introduced the multi-platinum group Jodeci and teen R&B performer Tevin Campbell (also one of Quincy Jones's former protégés), as well as Faith Evans, Dave Hollister, Case, and Usher to the music scene.