Former flame Justin Timberlake has reportedly told new mom Britney Spears to leave hubby Kevin Federline if she is unhappy, according to a published report.

Justin to Brit: Get Out if Sad

The American tabloid 'The Star' cites a source close to both singers in a report.

An item on the web site notes:

When Justin Timberlake, 25, heard that his first love, Britney Spears, 24, was desperately unhappy, he telephoned her in mid-January to get the truth straight from Britney herself. "Justin asked point-blank, 'Are you happy?'" a source close to both singers tells Star. "Britney paused for a few seconds, sighed and said, 'Sometimes.... You know how it is.'"

"Actually, no, I don't know!" responded Justin.

[…]

Alarmed by reports that stress over her 27-year-old husband Kevin Federline's reported cheating has begun to make her physically sick and that Britney has been stuffing herself with junk food — her weight has skyrocketed to 140 pounds in recent weeks — "Justin told her that her marriage should be nourishing her, not sucking the life out of her."

Finally, the source says, "Justin told Brit that if she's not happy in her marriage, she needs to get out — for herself and for the baby!"

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The tabloid notes that Britney and Kevin's rep says they "are great."

Now - if the story is true - will Brit take Justin's advice?

--Tina Sims