Pop singer Beyonce stopped backstage to visit with songbird Mariah Carey at her NYC concert on December 11.
Carey posted this photo on Instagram.com along with the caption: "I love you @beyonce thank you sooooo much for coming out tonight!"
Some of Carey's followers noted how much younger the 46-year-old singer looked than Beyonce, who is a decade younger than Carey.
"Beyonce looks like Mimi's mother!" noted one sharp-eyed Instagram.com user.
Anti-aging doctors say taking a daily regimen of vitamin C, vitamin E and Selenium will help prevent the formation of "free radicals" that prematurely age skin cells.