07/03/2012 12:27 pm ET Updated Sep 02, 2012

Singer Kimberly Cole Raves About Writing 'Housewives' Star Gretchen Rossi's New Song

When Kimberly Cole isn't churning out edgy dance-pop tracks of her own, like last fall's Billboard Dance Chart Top 20 smash "Arrow Through My Heart," the bombshell is penning hits for others. She is still gushing about stepping into the studio with Real Housewives of Orange County star Gretchen Rossi.

Introduced to her fellow "OC girl" by mutual friends, Cole worked with the reality TV star to pen "Unbreakable." What at first might sound like a break-up anthem, Rossi told Ryan Seacrest when he debuted the song on his popular Los Angeles-based KIIS-FM morning show, is actually an homage to boyfriend Slade Smiley's 12-year old son. The boy has battled a brain tumor for half his life.

Writing the song from an emotional place sets the cut aside from musical releases by other members of the Housewives reality franchise, according Cole. "It's the best, in my opinion, and not just because I wrote it," she says, "It's a legit song."

Cole acknowledges it is sometimes difficult to take the cat-fighting women from the popular Bravo series seriously as artists. Still, she stands behind Rossi. Not only is she "the sweetest person" -- "What you see is what you get," Cole raves, "She has a great heart!" -- Rossi is also "an artist."

"She sounds great on the record," Cole says, "It's a great song!"

"Unbreakable" was previewed two weeks ago on Season 7, Episode 20 of Real Housewives of Orange County. Meanwhile, not to be outdone, Cole recently released the video for her latest dance track, "U Make Me Wanna," on which she again partners with "Arrow" collaborators Eddie Amador and Garza.

All songs are now available on iTunes.

Listen to Audio from Our Interview Here: