Madonna and Lady Gaga

These music legends do not only share great success, but also a blood connection. According to celebrity genealogist Chris Child, Lady Gaga, 37, and Madonna, 64, are ninth cousins.

In an interview with The Boston Globe, Chris revealed he became curious when he noticed a very small detail while doing some research on the ‘Born This Way’ singer.

He said: "When I saw that Lady Gaga had French Canadian ancestry, I thought there might be something there."