Jada Pinkett Smith No Support at Latin Grammys ... Will Smith Loves It

11/20/2015 7:00 AM PST

Will Smith rapping in Spanish at the Latin Grammys was actually overshadowed ... by Jada Pinkett Smith's rack which she flaunted in a transparent dress. 

Jada's known for her hard body, and it stole the show Thursday night in Las Vegas. Mr. and Mrs. Smith probably got way more pics taken than usual at the event ... which is what happens when you show up with a distinct lack of boob support.  

Will got on the mic for a remix of Bomba Estereo's "Fiesta" ... which is exactly what Jada's whappers were screaming in that dress.