Drake’s Dad, Dennis Graham, Says He’s Clueless About his Son Being a Father

[[tmz:video id=”0_x3g0pe5k”]] Dennis Graham most DEFINITELY wanted to cue up Kendrick Lamar’s “Bitch, Don’t Kill My Vibe” when our photog asked him what it’s like to be a grandfather … cause Dennis wanted nothing to do with the question. We got…

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