The shirt he wore featured a close-up ... there have been rumors of tension between the two men, despite Drake featuring on Lamar's song "Poetic Justice," off his classic 2012 album Good Kid ...

But it was the back of his shirt that seemed to be very telling. The slogan emblazoned across the back, read: "Keep Them Away ...

The plot thickens with media personality Akademiks suggesting that Drake’s shirt might be a subtle jab ... shared on his “Off the Record” podcast that he’s been in contact with Drake ...

Now, Drake’s gone and chucked his two cents in, and honestly, we didn’t see this crossover coming. The back of his shirt even read ... Australia before he jets off to New Zealand, honestly ...