59 years old (Born on August 18, 1965)
Happy Birthday, Bob Harper! Another lap around the sun and still inspiring people—proof that sweating professionally pays off! From motivating contestants on "The Biggest Loser" to challenging audiences nationwide, your training advice has whipped us all into better shape (or brighter spirits trying).Your wisdom, wit and perfect balance of tough love have made fitness feel less like punishment—and more like an enjoyable adventure. Here's hoping your big day includes plenty of cake—because even fitness legends deserve a cheat meal now and then. Keep smiling, keep rocking those tattoos...and here's to yet another year crushing goals in style!