If Brandi Glanville wants to keep slamming LeAnn Rimes on "Real Housewives of Beverly Hills," go for it -- because the singer says she's "flattered" by the attention.

Rimes was on "The Tonight Show with Jay Leno" on Tuesday night, where she was asked what she thought about her husband Eddie Cibrian's ex being on the Bravo show.

"There's no reality in a reality show. There isn't," she said about the show ... which occasionally spotlights digs from Glanville about Rimes' affair with her ex-husband.

"I guess it's not weird when I know that's not my reality," she adds. "Here's therapy coming out of me, I should be flattered that I'm that interesting that I can be such an amazing storyline on a reality show."

Of course Brandi isn't the only one talking about the two's past.

While on Leno, LeAnn performed her new song "Borrowed" -- a tune specifically about cheating.

Here's a telling sampling of the lyrics:

"I know you’re not mine, only borrowed, cause you already belong to her, at least you said so ...I Wanna hold out, but gotta hold on, even though I know it’s wrong."

You can download the track here on iTunes.

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