Tiffany Cobb, known professionally as Blu Cantrell is an American R&B and soul singer.

"Hit 'Em Up Style (Oops!)" is a song by American R&B singer Blu Cantrell, written and produced by Dallas Austin and included on Cantrell's debut album, So Blu (2001). The song was released in the United States on April 23, 2001, as Cantrell's debut single. It is her most successful single in the US and her only single to enter the top 40 of the Billboard Hot 100 chart, peaking at number two for two weeks in July 2001. It experienced similar success worldwide, becoming a top-10 hit in Australia, Canada, the Netherlands, and New Zealand.