Katharine McPhee Rocks Red Mustache to Celebrate Cinco De Mayo

Katharine McPhee carries a bag of groceries after making a stop at Gelson’s market on Tuesday (May 5) in Los Feliz, Calif.

On the same day, the 31-year-old entertainer posted a pic of herself with a fake mustache and wrote on Instagram, “#cincodemayo with @doubles2thev. Wish you were here @indotjoy #tequila #margaritas.”

PHOTOS: Check out the latest pics of Katharine McPhee

If you were unaware, Katharine is currently on a break from shooting her CBS show Scorpion, which was renewed for another season earlier this year.