Dianna Agron Supports Glee's Amber Riley at Holiday Concert!

Dianna Agron wears a black coat over a blue dress while leaving the Roxy Theatre on Monday evening (December 23) in West Hollywood, Calif.

The 27-year-old actress stepped out to support her Glee co-star Amber Riley at her holiday concert that night.

PHOTOS: Check out the latest pics of Dianna Agron

Earlier in the day, Dianna was spotted at Urban Outfitters in Studio City to pick up some last minute Christmas gifts.

Over the weekend, Dianna was looking red hot while attending Galore magazine’s first anniversary party.

FYI: Dianna is wearing DKNY tights at the Roxy.

15+ pictures inside of Dianna Agron at the concert and doing some shopping…