Beyoncé Knowles [1] paid homage to one of her idols with her Halloween [2] costume this year. She showed up to Power 1051.1's Powerhouse event in NYC on Thursday night and channeled Janet Jackson in her "Rhythm Nation" video [3]. Beyoncé was joined by her husband, Jay Z, who performed on stage during the show in a plaid shirt and Jason mask, and their 2-year old daughter, Blue Ivy Carter, who looked incredibly adorable in her mini-Michael Jackson costume. While Beyoncé used Halloween to honor Janet Jackson [4], there was another family that showed love to Beyoncé and Jay Z with their childrens' costumes. Bey shared a photo on Instagram of a pair of babies dressed up to look like her and Jay [5] during their recent visit to the Louvre museum [6]. Let us know what you think of Beyoncé's cute costume, and then check out 17 ways you can run the world as Queen Bey [7] this weekend!