While a lot of celebs showed up for the BET awards, some big names were absent last night —  Jay-Z, Beyonce, Drake, Kanye, Rihanna & Lil Wayne to name a few.  So what was Tunechi busy doing?!  We may have the answer thanks to Knicks baller JR Smith. JR posted a video on Instagram late last night and even though he doesn’t say when the video was exactly taken, fans are assuming this is what they were doing instead.  Check it out….