Steph Curry's Daughter -- Hijacks Press Conference Again ... Sings Big Sean Song

Best video of the day.

Steph Curry's adorable daughter, Riley, stole the show at the Warriors post-game press conference -- AGAIN -- and this time, she capped off her performance by singing some Big Sean into the mic.

Watch the video ... just when you think it can't get any better, Riley kicks it up a notch.

Remember when those reporters complained that she was detrimental to the press conference process?