Gwyneth Paltrow rang in 2012 with an unlikely friend – rocker Courtney Love – in Abu Dhabi.
And Kim Kardashian, who is in the middle of divorce proceedings, turned philosophical posting a series of self-reflective tweets and showing off a new fringe into the bargain.
She told her followers:"Funny how people look 4 a fresh start in the New Year but the truth is its just an excuse!
"U can start fresh & set goals any day of the year."
Meanwhile, over in Spain, Eva Longoria joined her boyfriend Eduardo Cruz, brother of Penelope Cruz , for a traditional Noche Vieja – New Year's Eve – in Madrid.
Other celebs took to Twitter to wish their fans a happy new year.
Television host Jonathan Ross wrote: "Happy New Year to everyone on Twitter. Even the weirdos. Actually, make that ESPECIALLY the weirdos."
Presenter and singer Myleene Klass, who had an eventful year that saw her get married and give birth to her second daughter, wrote: "Happy New Year guys and gals. Xxx."
In pictures: The stars ring in the New Year
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