The third installment of the One-derful! Collection focuses on M-Pac!, the blues and hard soul imprint of this legendary R&B label group. Within the grooves of these 24 tracks lie superb group harmonies from The Ringleaders and The Accents, gritty hard soul leads from Willie Parker and Stacy Johnson, and songs from one of Chicago's most under-appreciated soul shouters in Harold Burrage, plus 10 tracks that were never issued!