12/13/2012 11:03 pm ET Updated Dec 06, 2017

#Tubeathon Live Has YouTube Stars Raising Money for Homeless Youth

What's Trending and Virgin Mobile are making history tonight with the first ever "Tube-a-Tweet-a-Thon" holiday spectacular, which brings YouTube's hottest stars together for a good cause!

The unprecedented online variety show will stream live on the What's Trending YouTube channel at 9 p.m. ET/6p.m. PT, with appearances from iJustine, Shay Carl, My Drunk Kitchen's Hannah Hart and Daily Grace, as well as musicians Pentatonix, The Gregory Brothers, American Idol's Pia Toscano, and many more!

Watch livestream below:

For every tweet that includes the #Tubeathon hashtag, Virgin Mobile will donate $1 to Covenant House, a non-profit organization that shelters homeless youth around the country. So start tweeting away and help us raise up to 50k!

Get all of the latest updates on the #Tubeathon by following @WhatsTrending and @VirginMLive on Twitter and subscribing to!