Photos: Entertainment look back 2011
Best of 2011 - Entertainment
Credit: AP
Katy Perry performs in concert at the Pepsi Music festival in Buenos Aires, Argentina, Tuesday Sept. 27, 2011. (AP Photo/Victor R. Caivano)
Credit: AP
Katy Perry performs in concert at the Pepsi Music festival in Buenos Aires, Argentina, Tuesday Sept. 27, 2011. (AP Photo/Victor R. Caivano)
