Last year Miley Cyrus made news by twerking up on Robin Thicke like there was no tomorrow.

This year, Cyrus found a way to top her MTV VMA appearance with what could be the most poignant moment of the award show.

PICS: VMAs Hottest Fashions

After winning Video of the Year for "Wrecking Ball," Miley let homeless teen Jessie accept the award for her "on behalf of the runaways and homeless youth."

MORE: What Miley Cyrus, homeless date did after VMAs 

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    "I have survived at shelters all over the city," said Jessie. "I have been an extra in your movies. I have been an extra in your life. Though I have been invisible in your life, I have the same dreams as many [of you]."

    Miley has been helping out a homeless center for young people in Los Angeles called My Friend's Place.

    "Los Angeles has the largest population of homeless youth in America," said Jessie. "54,000 human beings who have no place to call home."

    You can support the cause by making a donation at www.prizeo.com/miley.

    According to Miley's Facebook page, "For every $5 donation, you'll be entered to win a trip for 2 to Brazil to hang out with me at my show in Rio de Janeiro on Sept 28th. You'll get the full VIP experience, including 2 of the best seats in the house."

    On the VMA red carpet, Miley promised Sway and Lucy Hale that she had something "really special" planned.

    "It think it's going to make a different kind of impression, so it's going to be cool," said Miley.