I have heard 2 or 3 songs mention Nancy Kerrigan. Why do they mention her name?

What do they mean when they say Nancy Kerrigan in Strange Clouds b.o.b and hurt me tomorrow knaan? B.o.B says "I hit her with that pipe, call that Nancy Kerrigan" and K'naan says "Cause girl you bring me to my knees...Nancy Kerrigan"
Update: THANK YOU but I all ready know who she is, I just want to know why all these people are mentioning her in her raps? what is the importance?
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