Demi Lovato and Adam Lambert to Guest Star on Glee | Video

Demi's Glee Debut and More of Fall TV's Buzziest Guest Stars!

James Franco is scrubbing in on The Mindy Project, Demi Lovato has a Glee debut in the works, Kristen Bell faces off with Amy Poehler on Parks and Recreation, and The Little Mermaid is finally making a splash on Once Upon a Time — but which redhead is rocking her fishtail? We've got all the latest updates on Fall's buzziest TV guest stars!

Demi's Glee Debut and More of Fall TV's Buzziest Guest Stars!  originally posted on POPSUGAR Celebrity
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