Marsha Ambrosius and Natalie Stewart are the Grammy-nominated divas behind neo-soul duo Floetry. The pair emerged in the late-'90s as in-demand songwriters penning tracks for Jill Scott, Bilal and even Michael Jackson (they're behind his 2002 single "Butterflies"). Armed with "The Songstress" Ambrosius' powerful vocals and "The Floacist" Stewart's passionate lyrics, they stepped into a spotlight of their own with the sultry international hit "Say Yes." The British soul stars also went on to work with Mos Def and Common. After pursuing solo projects, Floetry has reunited and they're set to steam up the stage at Phoenix's Celebrity Theatre.