Katharine McPhee is the latest young star to join the ranks of girls (Hayden Panettiere, Vanessa Hudgens, Mischa Barton and Jennifer Love Hewitt) who’ve represented the cosmetics giant.

McPhee has just signed a two-year endorsement deal with Neutrogena. She will become the new flawless face of the skin care company’s anti-acne product line.

While no official announcement has been made from Neutrogena’s camp, a source close to the deal says the entertainer pocketed more than $500,000 for the use of her fresh-faced visage.

McPhee already shot her first commercial for the line in LA on March 16. Look out for the ad and the prints in a couple of months.