Singer-songwriter Jessie J's favourite beauty product that she recommended to her fans on Twitter has become a hit.

"A lot of people often ask me what face cream I use. I have used Dior Rehydrating Mask everyday for 3 years. It's one of the few products I couldn't live without," 25-year-old Jessie posted.

Fans were quick to express their delight at the revelation, with one enthusing, "Definitely getting some of that if it will help me look like you." Another chimed in, "Oooooooo i am gonna buy it".

Jessie, who shaved off her hair and dyed it blonde last month, also posted, "No one owns a hair style. No one owns a hair colour. No one looks the exact same just because they have similar hair. Don't let it define you. It's hair. Just hair."