The former 'Friends star" has appeared on 'Who Do You Think You Are?' – the reality show that traces the ancestry of popular celebrities, reports the Daily Express. So she put her family tree expertise to good use during a recent appearance on Degeneres' U.S. talk show - by researching the host's ties to the 'Material Girl" hitmaker.
Appearing on the comedienne"s daytime show, Kudrow revealed, "You're 11th cousins (with Madonna). What you share is your 10th great grandfather, his name was Martin Aucoin, from France... He had two daughters, Jean... That's your side. And another daughter, Michelle, and that gave rise to Madonna's side, and they moved to Canada. Then your fifth great grandfather... he's the one who moved the family to Louisiana in the late 1700s."
DeGeneres said: "That's pretty far back, that's pretty amazing."