Lady Gaga celebrated her 25th birthday at the Staples Center last night with thousands of her closest friends. The jam-packed stadium sang "Happy Birthday" (VIDEO) to her as her crew brought out a cake. The LA Times notes there was "no word on who the cake designer was (no doubt the most celebrated, innovative one in the world), but if the number of candles atop it is any indication, the woman born Stephanie Germanotta turned 6 Monday night."
Gaga's costume changes were characteristically jaw-dropping, ranging from a body suit and knee-high boots to a revealing nun-inspired costume. Check out photos of the lively and bold performance Lady Gaga brought to the Staples Center.
Photos by Kevin Winter/Getty Images