Mariah Carey
"#RockinEve Rehearsals," the "Obsessed" singer shared hours before midnight. "Let's do this, @officialNYRE! #2017WithMariah."
Kym Herjavec
"Getting ready for the NYE show sydney is going to put on!" the Dancing With the Stars pro shared on Instagram.
Stassi Schroeder
The ladies of Vanderpump Rules ring in 2017 in Cancun.
Patrick Schwarzenegger
"Great way to end 2016," the actor wrote while enjoying the slopes with Arnold Schwarzenegger.
Scott Eastwood
"Well this New Years weekend got started off with a bang. What a great day with this motley crew!!!" the actor wrote on Instagram. "2016, l thank you for the amazing year. Everyday is a great day to be alive, remember that...Laugh and love. 2017 here I come!!!"
Ryan Seacrest & Jenny McCarthy
The hosts behind Dick Clark's New Year's Rockin' Eve prepare for the live show in Times Square.
Audrina Patridge
"Our kitchen is ready to welcome our friends and fam in the new year thanks to @PartyCity," The Hills star shared on Instagram.
NEXT GALLERY: Stars Celebrate Christmas 2016