On Monday, Usher zoomed in to The Breakfast Club to address his PDA with Alicia Keys at the SB but also came clean about the internet resurfacing his 2014 VMA performance with Nicki Minaj.

During their set at the time, Usher bumped and grinded on Nicki's booty onstage -- and then smacked it with his hand. It got overlooked back then ... but it's been resurfacing lately, with many accusing him of being out of pocket and inappropriate, similar to how he handled AK.

Usher explained to Charlamagne Tha God that dances in Jamaican culture generally involve people getting handsy -- but does admit he was wildin' a bit when he put his handprint on Nicki's Pinkprint, and he seems to feel somewhat about it in 2024.

On the issue of hugging Alicia from behind, though -- which also caught some backlash -- Usher isn't bending the proverbial knee ... saying it was just part of their routine for 'My Boo.'

The R&B powerhouse was also quizzed about the time he was referenced in an episode of "The Boondocks" where a married woman fanned out and turned into an Usher groupie in front of her husband ... all based on the real-life experience of producer Carl Jones and his ex-wife.

Usher blamed the woman's transgressions on the "Usher Effect" but denied any sorcery of the kind contributed to his sexified duet with Alicia as millions watched on in speculation.

Alicia's husband Swizz Beatz immediately laughed it off and Usher tells 'TBC' he also had a hardy har with the couple over the various memes. Long story short, he and Alicia (and Swizz) are all good. But, with that said, he might also be more mindful going forward.