Blu Cantrell (born Tiffany Cobb; March 16, 1976) is an American R&B and soul singer-songwriter.

Cantrell rose to fame in 2001, with the release of her debut single, "Hit 'Em Up Style (Oops!)", which peaked at number two on the US Billboard Hot 100 and topped the US Mainstream Top 40 chart. The song also charted in several other countries, and it was included on her debut album, So Blu. The song earned Cantrell a Grammy Award nomination. In 2003, Cantrell released her second album, Bittersweet, which was nominated for a Grammy Award and resulted in the single "Breathe" (featuring Sean Paul). Written and produced by Ivan Matias, "Breathe" was a major global success in 2003, especially in the United Kingdom, where it topped the UK Singles Chart for four consecutive weeks. "Breathe" also reached the top ten of several other charts across the world, including the European Hot 100.

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