TheSingingMixer: This #duet #popupchallenge reminds me of the amazing musicians I've been able to #collab with on #acapellaapp! There have been so many #supergroups, I had to go back in time and #repost a few - know there were a lot that were worthy! I've dueted with @myrealnameisann and I'm glad she had the time to join me on my #popup performed in these few days! What better group to #cover 4 a #duetchallenge than #theeverlybrothers & #simonandgarfunkel 2 iconic #duos who made #byebyelove #classic. We did alright!#tsm