"Does she still love to dance," oner person asked ... there's just something about "Single Ladies' that makes it a timeless ...

Once getting in the space with her, starting to dance with her ... a gig choreographing one of the best videos of all time...."Single Ladies." Knight: Frank Gatson Junior, who was choreographer ...

Justin Timberlake, Bobby Moynihan, Beyonce, and Andy Samberg dancing to "Single Ladies" on "Saturday Night Live" ...