Thought you were Beyoncé's biggest fan? Well, think again. Olivia Wilde [1] stopped by The Ellen DeGeneres Show on Thursday and talked about her son Otis's intense love for the "Formation" singer. The Vinyl actress revealed it all started when the two were on an airplane and all she had to distract her son with were Beyoncé music videos [2]. Let's just say, he quickly became engrossed. "From that point on, he called her Beyoncé boobies," she admitted, adding that Otis's upcoming second birthday party will be a "Beyoncé appreciation dance-off." See the full video above, and then check out the sweetest pictures of her with her son [3].