Gwyneth Paltrow was the subject of cheating rumors even before her split from estranged husband Chris Martin. But she may not have been alone in her alleged straying. According to Page Six, Chris Martin had an affair with a Saturday Night Live assistant after his band Coldplay’s 2011 appearance on the series.

“He had an affair with a woman who was backstage and was part of an entourage,” a source said of this rumored Chris Martin affair. “Everyone was talking about it because he was openly flirting with her at one of the show after-parties.”

RELATED: Did Gwyneth Paltrow And Chris Martin Have Open Marriage?

Chris Martin and Gwyneth Paltrow announced their “conscious uncoupling” late last month. The two had been married for 10 years and have two children together.

Gwyneth Paltrow Chris Martin Gwyneth Paltrow and Chris Martin have both been the subjects of cheating rumors in the weeks following their separation.

Gwyneth Paltrow and Chris Martin’s split came just a month the secret-sharing app Whisper claimed the actress had an affair with entertainment lawyer Kevin Yorn. But Paltrow’s publicist vehemently denied this rumor to Defamer.

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Page Six previously reported that Gwyneth Paltrow cheated on Chris Martin with billionaire Jeff Soffer. The tabloid claimed that this alleged affair would have been the subject of Vanity Fair’s rumored profile of the actress. The article never ran in the magazine, and Vanity Fair editor Graydon Carter later claimed that the “takedown” nature of the piece was blown out of proportion in the media. A rep for the actress also denied that Paltrow and Soffer were romantically involved.

“She has been friends [with] him for a long time,” the rep told Us Weekly of Gwyneth Paltrow’s relationship with Jeff Soffer. “Chris [Martin] is friends with him as well. .... There was no romantic relationship." Chris Martin faced plenty of cheating rumors before his split from Gwyneth Paltrow, as well.  The Coldplay frontman has been linked to Kate Hudson, Helena Christensen and Kate Bosworth in the past. Star even claimed in 2009 that Martin made out with Bosworth in front of a crowd of people. But a rep for the  singer called the report “entirely untrue.”

RELATED: Did Gwyneth Paltrow’s Parenting Style Lead To Split From Chris Martin?

Chris Martin and Gwyneth Paltrow Gwyneth Paltrow and Chris Martin reportedly had an open marriage, which might explain the cheating speculation.

Meanwhile, reps for both Christensen and Hudson also denied the Chris Martin rumors.

“Helena has been friends with both Chris Martin and Gwyneth for many years,” Christensen’s rep told E! News. “However, she has had no romantic relations with Chris and any implication to the contrary would be highly defamatory and lead to legal proceedings.”

Kate Hudson’s attorney issued a similar statement about the actress’ supposed Chris Martin affair: “Ms. Hudson and her family are close friends with Gwyneth Paltrow, Chris Martin and their family, and any suggestion that Ms. Hudson was ‘linked’ romantically to Mr. Martin, or otherwise had anything to do with his marital separation, is deeply upsetting…as well as completely false, defamatory and actionable.”

Still, People claims Chris Martin and Gwyneth Paltrow had an “open marriage” even before their split last month. So it would not shock us if at least some of these cheating rumors were accurate.