When BET's Stephen Hill said he had a 'hospital sick' front row for this year's BET Awards, we kind of guessed it would look like this. Beyonce (along with her sister Solange), Jay-z, Kanye and Kim Kardashian all sat front row tonight while enjoying performances from the likes of D'Angelo, Chris Brown, Usher, Melanie Fiona and more. The bubbly was definitely poppin'…