Justin Timberlake turns 42: a look back(34 images)

Justin Timberlake (L) of 'NSYNC answers questions while Marlon Wayans hugs his brother Shawn Wayans at a press conference on New York City on July 25, 2000. Photo by Ezio Petersen/UPI

Britney Spears (L) and then-boyfriend Timberlake arrive at the Jive Records New York party to celebrate the release of Spears' new album on November 6, 2001. The former Mickey Mouse Club co-stars broke up in 2002. Photo by Ezio Petersen/UPI

Members of 'NSYNC, from left to right, Lance Bass, Timberlake, ‎JC Chasez, Joey Fatone and Chris Kirkpatrick arrive at the Billboard Music Awards in Las Vegas on December 4, 2001. Photo by Roger Williams/UPI

Timberlake (L) and Janet Jackson perform during the halftime show that would become infamous at Super Bowl XXXVIII in Houston on February 1, 2004. Photo by Pat Benic/UPI