The rapper says the absence of in-person concerts over the past year has been really tough, so just the thought of taking the stage with a packed crowd gets his blood pumping.

Yachty -- who's set to perform at Portugal's Rolling Loud festival in July and at Chicago's Summer Smash in August -- tells us the connection he gets with his fans at a live show is unique ... and he expects the energy to be 50 times as intense after the long COVID break.

The hip-hop star also weighed in on one of hip-hop's biggest feuds over the past few years -- one in which he landed smack dab in the middle of ... and is still trying to do damage control.

LY reminds us why he sided with Cardi B over Nicki Minaj back in 2018, but explains why it's not nearly as controversial as it's been made out to be ... or at least that's how he sees it.

Watch the video though ... sounds like Nicki's still not over it.