By Meghan Overdeep
Updated Dec 02, 2015 @ 11:30 am
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Credit: reesewitherspoon/Instagram

After the Black Friday and Cyber Monday dust had settled, Americans rallied on Tuesday to celebrate Giving Tuesday, an annual day of generosity and giving back. Celebrities and non-celebrities alike supported the charities of their choice with donations both big and small.

Southern sweetheart Reese Witherspoon lent a hand to Girl's Inc. in Tennessee and stopped to take a photo with a group of young girls the organization is working to empower and inspire. "While in #Nashville, I had the great opportunity to meet these amazing young women and talk to them about financial planning and setting goals. I see bright futures ahead!" the actress captioned the snap (above), which she posted on Instagram.

And she wasn't the only celebrity using her clout to raise both money and awareness for worthy organizations: Scroll down to see the causes celebrities chose to support via social media on #GivingTuesday.

Katherine Heigl:

Lucy Hale:

Katie Holmes:

Cindy Crawford:

Kristin Davis:

Joe Jonas:

Jessica Chastain:

Elizabeth Banks:

Ke$ha:

Gywneth Paltrow:

Amanda Seyfried:

Robin Wright:

Sarah Silverman:

Lena Dunham:

Lauren Conrad:

Emma Roberts:

Sophia Bush:

Matthew McConaughey: