At least, that is what she gleefully signaled on The Ellen DeGeneres Show Friday during a game of Who'd You Rather?
The 35-year-old tennis champion burst out laughing when asked to choose between Idris Elba and Justin Bieber.
"Well," Williams said. "What do you mean?"
"I am definitely going with Justin Bieber!" she added, pumping a fist in the air. "Justin Bieber. You know what, it's always gonna be Justin Bieber."
"Are we stuck on Justin now?" Ellen asked, as a photo of Bradley Cooper was displayed alongside the pop star's. "But we're on Bradley Cooper."
"Justin Bieber," Williams said.
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The tennis star, who is known to be a Belieber, was also asked to choose between Jake Gyllenhaal and Bruno Mars as well as between Gyllenhaal and Michael B. Jordan—the last of which was a no-brainer for her, apparently.
She was also ask to make the extremely tough choice between Jordan or Zac Efron. Other contenders included Chance the Rapper and British Formula One racing star Lewis Hamilton, who spent Halloween with Williams.
Williams remained coy when asked about her real love life.
"So there is no special person in your life right now," DeGeneres said on her show.
"Well, I didn't say that," Williams replied."
"Well, let me ask you then. Is there a special person in your life?" DeGeneres asked.
"I didn't say that," Williams said. "There's a lot of special people in my life."