Coldplay and Jay-Z linked up for a co-headlining New Years Eve show at Brooklyn's Barclays Center that featured various collaborations, including Chris Martin joined Jay-Z onstage for the rapper's "Run This Town." Martin and wife Gwyneth Paltrow grooved with their kids Apple and Moses (though Moses needed some coaxing from mom), providing excellent dancing support for Jay-Z, and Martin led the crowd in singing the track's hook. Family and a whole lot of friends seems like a great way to ring in the new year.