TIME's Joel Stein had the luxury of taking Barbra Streisand on a mini-road trip (from Malibu to Beverly Hills--mini, indeed), and managed to unearth a detail that may send the world off its axis. 

Who does Babs want to cast as the lead in her remake of Gypsy?

And no, it's not Carrie Underwood. 

Find out after the jump.