Alexa Ray Joel, daughter of music legend Billy Joel and supermodel Christie Brinkley, has responded to rumors circulating since early last year that she has had extensive plastic surgery.

"On a personal (and slightly ridiculous note): I would just like to add that all of the continuously-circulating rumors that I have had extensive 'face-work' and undergone breast-augmentation surgery is simply and entirely 100% false," Joel, 28, posted on Instagram. "The only thing I have ever had done is my nose, which I have always been completely candid, honest, and open about," she added, referring to rhinoplasty she underwent in April 2010.

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"Would I do anything else to my body?" she asked People magazine rhetorically at the time. "No. It's not 10 procedures like Heidi Montag. For me, that's a little extreme, but to each her own."

Joel -- who began a performance series Tuesday at Manhattan's Cafe Carlyle, running through April 12 -- credited makeup artist and stylist Caitlin Monahan for her more glamorous look. "Any visibly positive alterations in terms of my public image are an absolute and sole credit to [her] . . . a true beauty-wizard and visionary. (That, combined with the fact that I actually have a hearty dose of self-confidence now -- which took me a little extra minute or so to find.) ; )"

Joel concluded her missive with a pitch for her show, adding, "But, hey, wouldn't it be nice if the press could just focus on my music and stage presence? Because, honestly, I would rather be judged, critiqued and picked apart for my actual work."