Katharine McPhee's recent glow may not be entirely due to her newlywed bliss.

E! News has learned the erstwhile American Idol also-ran has signed a two-year endorsement deal with Neutrogena to become the new flawless face of the skin-care company's antiacne product line.

"We are delighted to confirm that actress/singer Katharine McPhee is working with Neutrogena on an innovative new project that brings consumers the next generation of skin care," the company told E! News exclusively.

Wasting no time in touting the benefits of Neutrogena, McPhee, who turned 24 on Tuesday, shot her first commercial for the line in Los Angeles March 16. The ad will hit the small screen in May, with the print ads following suit.

McPhee is the latest young star to log face time with the cosmetics giant.

Jennifer Garner is the current face of Neutrogena's antiaging line, and is contracted with the company through December. Hayden Panettiere, Vanessa Hudgens, Mischa Barton and  Jennifer Love Hewitt have also lent their mugs to Neutrogena ads.

—Additional reporting by Whitney English