This is so sweet ... but it's so sad!

Vin Diesel presented the award for Best Female Performance at the MTV Movie Awards on Sunday evening in Los Angeles, and before handing the prize to Shailene Woodley, the actor had a few words to say about Paul Walker.

"The last time I stood on this stage, it was with my little brother Pablo," the 47-year-old actor told the crowd of his late friend/co-star. Wiz Khalifa's “See You Again," which is from the Furious 7 soundtrack, was playing, at which point Vin proceeded to sing a few lines of it. Ahh! We're about to cry!