Nicole Kidman
The Aussie A-Lister wishes Happy New Year from Sydney.
Ke$ha
The notorious party girl swapped a bottle of Jack for a pretty party dress.
Ryan Seacrest
The New Year's Rockin' Eve host raises a Twitter toast.
Bridget Marquardt
The former Girls Next Door star finds a delicious piece of man-meat to mash with at midnight: The Carl's Junior star.
Kate Bosworth
Happy "Noir" Year from the black-and-white beaut and fiancé Michael Polish.
Haylie and Hilary Duff
At least one of the "Duff Seesters" was playing coy with a feathered party hat (we see ya, Hil!).
Soulja Boy
Soulja Boy knows where the party's at.
Joe & Nick Jonas
Two of the JoBros donned matching hats and they rung in 2013.
LeBron James
The hoops star and his lady keep things chill.
JWoww & Snooki
The guidette besties make the scene in NYC.
Kris Jenner and Lance Bass
These two clean up real good.
Mariah and Nick
The lovebirds celebrated a blingy New Years Eve in Australia.
Ludacris
The rapper hangs with pals as 2012 comes to a close.
Guy Oseary and Diddy
The hip hop mogul spends some guy time with agent Guy.
Kat DeLuna
The Dominican-American dance-pop singer thanks her friends and helpers in Belgium.
Ashley Tisdale
The Tiz and friends visit Mammouth Mountain on NYE day.
Kevin Jonas
The Married to Jonas stars ring in the new.
Mario Lopez
Mario smooched new wife Courtney in the heart of Times Square.
Chuck Liddell
The famed martial artist looks like he's found a worthy partner for NYE: longtime love Heidi Northcott.
Kirstie Alley
The star sets the stage for a girls' night bash.
Zoe Saldana
The actress captured a fallen partier, writing, "There's always one in the family!"
Jack Osbourne
A tame night in for new papa Jack and wife Lisa Stelly, who said little Pearl didn't make it to midnight.
Blake Shelton
"Happy Ne...." joked The Voice coach, his solo cup still perfectly balanced.
Cooper Hefner
While Hugh was tying the knot, son Cooper hosted NYE at the Playboy Club in London,