Betty White turned 95-years-old on January 17, 2017.
Many celebrities took to social media to address the milestone by wishing the star a very happy birthday.
Scroll down for the reactions.
Reese Witherspoon

Proof of why #BettyWhite is my all time fav! HBD @BettyMWhite !!
Craig Ferguson

Happy Birthday to my beautiful pal @BettyMWhite. First actress I ever worked with in Hollywood. Spoiled me for the rest. I love you Betty. X.
Wendy Williams

Happy birthday, Betty White!
Sarah Michelle Gellar

@BettyMWhite wishing you the happiest 95 birthday. You inspire and motivate us all!!
Kyle Richards

Happy birthday to one of my favorite role models @bettymwhite So fortunate to have worked with you. I wish you continued health, happiness and success #happybirthdaybettywhite.
William Shatner

Congratulations!
Josh Gad

Happy 95th @BettyMWhite – drink up love!!
Catriona Balfe

Happy Birthday @BettyMWhite… Thank you for the countless hours of laughter…
Tom Bergeron

Happy Birthday @BettyMWhite (I was hanging out with your “Hot in Cleveland” boyfriend yesterday. You both make the 90s look young!)
Katie Couric

How lucky am I? I got to wish my girl crush @BettyMWhite a happy…wait for it…95th birthday!!