Singer Lady Gaga performs at Z100 Jingle Ball 2008 at Madison Square Garden.  (AP File Photo)
Singer Lady Gaga performs at Z100 Jingle Ball 2008 at Madison Square Garden. (AP File Photo)
Singer Lady Gaga performs at Z100 Jingle Ball 2008 at Madison Square Garden. (AP File Photo)

When she goes Gaga ...

August 20, 2010 12:00 AM