4eva Is a Mighty Long Time is the third studio album by American rapper Big K.R.I.T., released on October 27, 2017, through Multi Alumni and BMG Rights Management.

The album features guest appearances from T.I., Lloyd, Bun B, Pimp C, CeeLo Green, Sleepy Brown, Joi, Jill Scott, Keyon Harrold, Bilal, Robert Glasper, Kenneth Whalum and Burniss Earl Travis II.

The double disc format really helps to drive home the point when the listener wants to switch from Big K.R.I.T.

[15] Aaron McKrell of HipHopDX gave a positive review, stating "It does highlight Justin Scott and Big K.R.I.T.

Thanks to 4eva Is a Mighty Long Time, Justin Scott has once and for all ensured that his musical legacy is worth remembering".

[10] Matthew Ismael Ruiz of Pitchfork noted, "Subwoofers are admittedly very cool, but by volume 4 ("Subenstein (My Sub IV)") of K.R.I.T.

"[9] 4eva Is a Mighty Long Time debuted at number seven on the US Billboard 200 with 33,000 album-equivalent units, of which 21,000 were pure album sales.