Hilary Duff stripes singer blonde parking meter pilates smile happy disney

Hilary Duff worked a black-and-white striped looked at pilates class on Tuesday -- an ensemble reminiscent of those classic jailhouse uniforms.

But Hil didn't mind the resemblance -- in fact, nothing could get her down -- even the news that Twilight actress Lindsay Pulsipher would be replacing her in the upcoming Bonnie and Clyde movie -- a role that would have really let her play a criminal! (Hil had to drop out due to her pregnancy.)

Nothing beats that pregnancy glow!