Style is everything, so how do you look good on your birthday?
This year, BBC News Style has gathered advice from people who wear the same clothes for every occasion.
The top tips: -Wear a nice fitted t-shirt and a fitted pants.
-Avoid bright colours, too much fabric, and any glitter.
-Wearing a bow tie is not only important, it’s essential.
-Don’t wear shoes and don’t be afraid to wear a smart pair of jeans.
-If you’re looking for a smart dress, a black skirt is a good option.
-Have a nice bouquet of flowers or some colourful flowers, too.
More from BBC News: How to dress on your Birthday -Style is Everything: Style and colour on your wedding day -Celebrating a special occasion: Why is it important to wear the right clothes?