Chris Martin ‘had affair with SNL assistant’

Following Gwyneth Paltrow and Chris Martin’s “conscious uncoupling,” NBC is abuzz that the Coldplay singer had an affair with an assistant after appearing on “Saturday Night Live.”

The couple, who announced their enlightened split last week after 10 years together, are said to have had an open marriage, and both had dalliances, according to sources.

NBC staff have been buzzing about an affair Martin had after appearing as the musical guest on “Saturday Night Live“ in 2011 with Coldplay. Martin also made an appearance on “Weekend Update” with Fred Armisen and Kristin Wiig as Garth & Kat.

One source tells us the girl in question was an assistant on the show, while another NBC source explained, “He had an affair with a woman who was backstage and was part of an entourage. Everyone was talking about it because he was openly flirting with her at one of the show after-parties.”

While a rep for Martin didn’t get back to us, he has strongly denied other rumored affairs. Paltrow’s spokesman said, “I don’t rep Chris so I cannot address those accusations.” There were also reports that Martin romanced Kate Bosworth in 2009, which were denied by his rep.

Meanwhile, there have been rumors of Goop creator Paltrow’s own dalliances. She has been linked to Miami billionaire Jeff Soffer in 2008, after attending the reopening of his Fontainebleau hotel, as well as entertainment lawyer Kevin Yorn. Paltrow, Soffer and Yorn have all denied the rumors.

Paltrow’s spokesman added, “We have time and time again denied any romantic relationship with Jeff Soffer and Gwyneth. Your source is either wrong or fake.” He added, “We will no longer be addressing the insane rumors that have been started by gossips.”

Meanwhile, Paltrow and Martin have been focused on pulling off one of the most amicable splits in showbiz. They embarked on a vacation together with family and friends as they released a statement about their “uncoupling” on her Goop Web site.