Beyonce is NOT a powerhouse vocalist. She has yet to match Leona Lewis and Kelly Clarkson whom are only lacking tone to be powerhouse vocalists and the bye-hive wants to elevate her to Aretha, Whitney, Mariah, Celine, Lara and Xtina? Good luck with that kids, there's a distinct presence in powerhouse voice that is nowhere to be found throughout beyonce's entire vocal range.
Making an objective to perforate the ear drums and blast away the weaves of the first three rows of the audience doesn't = powerhouse vocalist.
Or you can Youtube any live Bey performance - all good examples.
Beyonce is the only young artist who can STILL sing her heart out and people love to hate on that lol I mean even Mariah Carey doesn't have her voice anymore. Celine, Whitney lost hers completely before she died etc. Xtina can hold a note anymore if her life depended on it and even if she did, it wouldn't matter because she is stuck in the 90's early 00' and doesn't know how to make modern music. Beyonce is still standing. Anyone talking about how Bey cant compare to legends, go watch her singing scenes in Cadillac Records, the movie where she basically sang Etta James' songs better than her lol