Today marks Jonathan Taylor Thomas's 33rd birthday! JTT first hit the Hollywood scene in the early '90s, and he quickly became the king of pinups as one of the most popular teen heartthrobs. He famously voiced young Simba in The Lion King, and in Disney movies like Man of the House and Tom and Huck, JTT showed off his sweet charm. Along with his popular role on Home Improvement, he later had fans swooning with appearances on other TV shows like Smallville and 8 Simple Rules. To celebrate JTT fandom in all its pinup glory, take a look at reasons why he was — and always will be — the best of the best teen heartthrobs!