POTW: Justin Bieber, Taylor Swift, Usher, Trey Songz
WASHINGTON - MAY 01: Kim Kardashian and Justin Bieber attend the TIME/CNN/People/Fortune 2010 White House Correspondents' dinner pre-party at Hilton Washington Hotel on May 1, 2010 in Washington, DC. (Photo by Larry Busacca/Getty Images for Time Inc) Larry Busacca/Getty Images for Time Inc

Justin Bieber, Jon Bon Jovi, Queen Latifah and Jessica Simpson kicked it with President Obama at the White House Correspondents' dinner pre-party in Washington, DC, Taylor Swift and Lea Michelle glammed up for the Time 100 Gala at the Time Warner Center in New York City and Fall Out Boy Pete Wentz and wife Ashley Simpson and Tito, Marlon and Jackie Jackson put on their best linen for the 136th Kentucky Derby in Louisville, KY. It all happened this week and we've got the pics to prove it.

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