Jeffrey Brandon Timmons is an American pop singer, songwriter and producer and founding member of the Grammy-nominated pop group 98 Degrees.

98 Degrees is an internationally acclaimed, multi-platinum, multi-award-winning, and nominated vocal group consisting of brothers Nick and Drew Lachey, Jeff Timmons, and Justin Jeffre. The group has sold over 15 million albums worldwide with 4 Top 5 Billboard charting radio singles, including mega-hits such as "The Hardest Thing," "I Do, Cherish You," "Because of You," and the number one hit single featuring Mariah Carey called, "Thank God I Found You." 98 Degrees' albums have reached gold or platinum status in more than 60 countries worldwide. Their first Christmas album, "98 Degrees This Christmas," has sold over two million copies and is widely recognized as one of the most successful holiday albums ever.