Paulina Rubio Bottoms Out

7/13/2007 1:53 PM PDT

Paulina Rubio Bottoms Out

Back that azz up, girl!


Paulina Rubio shook her golden booty in Madrid last night for her "Amor, Luz y Sonido" tour. ¡Ay caramba!

The 36-year-old songtress is wearing more hair than clothing!