Top music stars from the early 2000s are reuniting for a newly-announced tour that will include a stop in Memphis.

Omarion, Raz B, J-Boog, and Lil Fizz are B2K bros -- FOR LIFE -- and they're ready to prove it to the world with their 25th anniversary tour, come 2026!!! TMZ Hip Hop linked up with all 4 B2K members ...