Word on the curb is that a VERY MARRIED superstar singer was recently spotted canoodling with one of his ex-girlfriends.

‘They’ say… ‘once a cheater always a cheater’…

Details + photos below…

According to several online reports, Usher and Naomi Campbell were spotted together recently enjoying a romantic dinner together in Paris.

If you’re aware of the singer’s?dating history, he dated Naomi prior to getting involved with Rozonda ‘Chilli’ Thomas. ?Usher’s always had a penchant for ‘seasoned’?women and now he’s on his 2nd marriage to one… his much older manger Grace Miguel.

The singer is reportedly suffering a?meltdown of sorts after his latest album went double wood, selling only 26,000 copies in it’s first week, so?he’s been pulling stunt after stunt to get people to pay attention to him.

[READ: Usher Exposes Himself For Album Sales (AGAIN)…]

The ‘happily married’ superstar couldn’t possible be cheating on his new wife already, could he? Is this yet another stunt to create a buzz?

I mean, really?! Who ‘cheats’ this sloppily… especially knowing that there are paparazzi lurking about?

[FLASHBACK: Usher Cheating on Grace Miguel With ‘Bridesmaid’ Maya Fox Davis… (PHOTOS)]

But I digress…

After Usher and his former flame dined together, the singer was also spotted escorting the supermodel back to her swanky Parisian hotel.

I wonder how Grace feels about all of this?

For the record, it’s not the first time that Usher’s been caught ‘out there’ while he’s been involved with Miguel (click HERE if you missed that). So?I suspect she approves of his stunts and shows.

What do you think of this Usher & Naomi sighting?