Ellen Albertini Dow -- who famously performed "Rapper's Delight" in the Adam Sandler movie "The Wedding Singer" passed away Monday. She was 101.

Dow's longtime agent confirmed her passing to Deadline.

She most recently appeared on "Family Guy" ... and "New Girl" in 2013 -- when she was 99! Ellen's other famous TV roles were on "Seinfeld," "My Name Is Earl," "Scrubs," "Six Feet Under" and "The Golden Girls."

She also played Grandma Cleary in "Wedding Crashers" and was Tom Green's grandmother in "Road Trip."

Her version of "Rapper's Delight" was on the "The Wedding Singer" soundtrack ... which made Billboard's top 5.

****WARNING: EXPLICIT LANGUAGE (It WAS rated R, after all)*****