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The expectant parents shine on the red carpet at the French film festival. Plus: Jennifer Aniston, Gwen Stefani, Nick & Mariah and more

WHEEL OF COSTARS! photo | Alyson Hannigan

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WHEEL OF COSTARS!

Neil Patrick Harris? Or Sarah Michelle Gellar? How I Met Your Mother's Alyson Hannigan cycles through her costars – past and present – during a fun taping of MTV's TRL on Tuesday.

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Credit: Jason DeCrow/ AP

Published: Thursday May 15, 2008 | 05:10 PM EDT

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