Kid Cudi said that he burned a bridge with Pharrell, and it has to do with Cudi's album Passion, Pain & Demon Slayin' 

“I don't know if Pharrell will work with me again, because those songs didn't do what they were supposed to do,” he told GQ. "The label didn't do the right thing."

Pharrell ended up producing three songs on Passion, Pain & Demon Slayin',  which were "By Design," "Flight at First Sight/Advanced" and the lead single "Surfin.'" Pharrell was featured on the latter two cuts.  

Pharrell hasn't responded to Cudi's interview at yet and usually stays clear of such controversies. But his name did come up in the beef between Pusha T and Drake. 

Earlier this year, Ebro said the problems between the two MCs stem from Pusha's main man's Pharrell's issues with Drizzy's former boss Birdman.

Do you think Pharrell will ever work with Cudi again?