At the first annual Tube-a-Tweet-a-Thon, presented by What's Trending and Virgin Mobile, a cappella supergroup Pentatonix performs the Christmas favorite, "Angels We Have Heard on High." It's the first track off of their new holiday EP, "PTXMas," available now on iTunes and Amazon. The group is introduced by G4 and NBC's Alison Haislip and NASA's "Mohawk Guy," Bobak Ferdowsi. All of these stars and more gathered in our Hollywood studio for an amazing cause.
Viewers can contribute to the Covenant House's efforts to aid homeless youth by tweeting #Tubeathon! It's that easy. For every tweet, Virgin Mobile donates $1 to the cause. Or, donate directly to Covenant House on the Virgin Mobile website.
These revolutionary music artists - Scott Hoying, Kirstie Maldonado, Mitch Grassi, Avi Kaplan and Kevin Olusola - won the third season of the NBC competition "The Sing-Off," boosted in part by their stellar rendition of Survivor's "Eye of the Tiger," and earning $200,000 and a recording contract with Sony.