After getting together for a kickin' Bring It On reunion [1], Gabrielle Union [2] continued to prove she's the best with a quick stop by Saugerties High School. If you're not familiar, this is the setting of Jimmy Fallon [3]'s Musical Morning Announcements. Previously, Julianna Margulies was Fallon's right-hand vice principal, but Union totally nails her part this time around. They put their own spin on a few popular songs, but the best part is unequivocally Union's Rihanna [4] impression. Mitch better have her money.