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

SWEET REVENGE

Timberlake may have said he wouldn't talk about Spears's alleged infidelity, but he promised nothing about hinting at it! In 2002's "Cry Me a River" video, Timberlake follows a Spears look-alike through her home, singing, "You don't have to say/What you did/I already know/ I found out from him." Timberlake eventually tells Rolling Stone, "I don't feel like I'm saying too much by saying she knows why this happened. Britney's a fire sign, a Sagittarius, they do things on a whim."