The 63-year-old pop superstar is regularly seen wearing jewellery over her gnashers and she's now opened up about why she decided to change up her look with customised mouth bling - admitting she worries her teeth don't look very nice.
During an appearance on 'The Tonight Show Starring Jimmy Fallon', she showed off her latest grill piece, telling the host, "I just got these new grills, and if I start lisping will you tell me?"
Jimmy replied, "Ooh they're beautiful! I love them."
The 'Material Girl' singer then went on to explain she had the new grills made as a special birthday present for herself as she prepares to turn 64 on August 16.
"They're my 'birthday grills. It's almost my birthday, so I got myself a pair of grills," she added.
Madonna then told the host she has been wearing mouth jewellery for "decades" and explained the reason why she covers her teeth. She said, "People have a problem with my grills, I don't know why... I just like the way it looks - it's mouth jewellery - and I have really ugly teeth."
She also spoke about her fashion forward 16-year-old son David Banda, revealing he often gets inspiration from his mother's wardrobe.
The singer said, "He can put on any outfit and look swag as 'you know what'. It's really irritating. He wears my clothes and looks better in them. He can even wear a dress and look butch."