POTW: Ke$ha, Jay-Z, Adam Lambert, Beyonce
LOS ANGELES, CA - MAY 15: Singer Ke$ha attends KIIS FM's 2010 Wango Tango Concert at Nokia Theatre L.A. Live on May 15, 2010 in Los Angeles, California. (Photo by Mark Sullivan/WireImage) Mark Sullivan/WireImage

Ke$ha wielded a creepy doll head, Adam Lambert dressed down, B.o.B. put the deuces up and Jason Derulo looked sharp at the KIIS FM's 2010 Wango Tango Concert in L.A. Meanwhile, power couples Jay-Z and Beyonce and Will Smith and Jada Pinkett-Smith posed together at the post-theater reception for the Broadway show "FELA" in New York City and Jennifer Lopez gazed at hubby Marc Anthony as he shared a story while smoking a stoggy at the 63rd Annual Cannes Film Festival in Cannes, France. It all happened this week and we've got the pics to prove it.

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