Gasp! Who sang the song better Ariana Grande V Naya Rivera. Big Sean’s new girlfriend V his EX! On the Season premiere of ‘Glee’ Naya Rivera and her glee gang sang Ariana’s ‘problem’ song. Does Ariana have one less problem? Naya Rivera also took on Iggy Azalea’s rap portion of the song. We have Naya’s performance, check out the video..