The Nickelodeon Mega Music Fest is an hour-long music celebration premiering on Labor Day, Monday, Sept. 6, at 8pm ET/PT on Nickelodeon. The first annual Nickelodeon Mega Music Fest will be hosted by John Leguizamo, and will feature Justin Bieber, Sherri Shepherd, Colbie Caillat, Wyclef Jean, The Roots, Dora the Explorer, Yo Gabba Gabba!, The Fresh Beat Band and The Laurie Berkner Band. – (AHN)
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