Jennifer Garner Celebrates One Million Instagram Followers with Hilarious Video!

Jennifer Garner flashes a huge smile as she steps out on Wednesday afternoon (February 14) in Brentwood, Calif.

The 45-year-old actress went cool and comfy in a tan jacket over a red shirt and jeans as she spent the day running errands.

PHOTOS: Check out the latest pics of Jennifer Garner

The day before, Jen took to Instagram to celebrate reaching one million followers – all while wearing her new mouthpiece!

“When one shoots a cage fight, one must have a mouth guard. 😬🙊
#momproblems #2minutestomold #PEPPERMINTmovie #onemillionfollowers🤗 #thankyousomuchforfollowing #thisiswhatyouregettinginto,” Jen captioned the below video.