Justin Timberlake at 30: From Teen Dream to Leading Man

See how the birthday boy (Jan. 31) ditched the curls to become a singing, acting, designing phenomenon


In spite of ending their romance earlier that year, Timberlake and Diaz stay friendly, reuniting to promote Shrek the Third in 2006. "He's been great and we've been working so hard together to promote this film," Diaz tells PEOPLE, about her ex, who moves on to date Jessica Biel.

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