LMFAO: Pop group's grandma reveals true meaning of name
Grandma Goodfoot on the real meaning of LMFAO
The youngest of the duo, Sky Blue, is her grandson. Redfoo is Sky's uncle.
But to Grandma Goodfoot: "These are my boys. They are both my kids. I don't favor one over the other."
She even helped her boys come up with the name of their group.