On "H.A.M.," Jay-Z threw in a subtle shot at Lil Wayne and Birdman when he said:

“I’m like really half a billi nigga, Really you got baby money / Keep it real with niggas, Niggas aint got my lady money.”

Wayne brushed off the diss, saying in an interview with MTV, "Actually, the subject that he's talking about in that line, I can't box with the god. I'd be the first one to tell you that, given my wit, and the type of person that I am, I'd capitalize and I'd play off of it."

However, on Tha Carter IV, he does respond to the line, but he takes things a little past the point of playing. During his verse on "It's Good," a song that also features Jadakiss and Drake, Wayne spits:

"Talkin' 'bout baby money, I got your baby money / Kidnap your bitch, Get that 'how much you love your lady?' money."

Threatening to kidnap Beyonce? This could get interesting.