'Empire' Stars Jussie Smollett & Bryshere 'Yazz' Gray Join Estelle for 2015 Billboard Music Awards Performance: Watch

 Eric Jamison/Invision/AP
Jussie Smollett, Estelle and Bryshere Y. Gray arrive at the Billboard Music Awards at the MGM Grand Garden Arena on Sunday, May 17, 2015, in Las Vegas. 

Fox show Empire came to life at the Billboard Music Awards on Sunday, May 17, when Bryshere "Yazz" Gray (who plays Hakeem Lyon) performed alongside Empire cast member Jussie Smollett (who plays Jamal Lyon) and Estelle.

Billboard Music Awards

The three artists/actors performed a medley of their Empire hits: Gray and Smollett performed "You're So Beautiful," but not before Smollett and Estelle killed their duet, "Conqueror."  "Conqueror" is originally featured on Estelle's album, True Romance.

'Empire' Stars Bryshere Grey and Jussie Smollett Talk Billboard Music Awards

Empire viewership grew tremendously through out the first season, with 16.7 million viewers tuning in for its finale. And as presenter and Empire cast member, Taraji P. Henson (who plays Cookie), said, the show's soundtrack debuted at No. 1 on the Billboard 200.

Billboard Music Awards 2015