Beyoncé's 11-hour rehearsals...

Beyoncé is getting ready for her massive Coachella performance with 11-hour rehearsal days. 

Seven security guards are patrolling a high-profile L.A. studio that's been booked solely for herself, her dancers, choreographers, technicians and other members of her crew.  She headlines Coachella on April 14th and 21st and kicks off her 'On the Run II' tour on June 6th. You ready?