Cheers to Blue Bloods for putting a squad of veteran crimefighters back on the job.

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Magnum P.I.-turned-NYPD Commissioner Tom Selleck tops the list of cops, but CBS' rookie hit has also gotten Donnie Wahlberg — who traded NKOTB for the LAPD in NBC's underrated 2002-2003 crime drama Boomtown — back on the beat as his son, hotshot detective Danny Reagan. Meanwhile, Nicholas Turturro, who served seven seasons as Det. James Martinez on ABC's NYPD Blue, has rejoined the force as Sgt. Anthony Renzulli, the seen-it-all partner of newbi...

In Hollywood, the dating circle seems to be so small that most celebrities share boyfriends and girlfriends and swap spit left and right. The time between significant others seems to get shorter and shorter as well. Last week's tabloid cover may show a huge celebrity breakup and the week after it will feature the same exes and who they're already dating next. And although this isn't the case with all of Hollywood, there are a few we like to call Celebrity Serial Daters.

John Mayer uses his smooth rock star status to make the ladies fall for him, but seems to break their hearts just a...