'We have the power to make a real difference here,' Mabel Gonzalez Nunez, Change Agent Facilitator at Boston's Youth Lead the Change program, tells MTV News.
Alondra Luna Nuñez is back with her family in Mexico after being forcibly deported to the U.S.
'That is the first time he's told me something like that throughout the whole competition,' singer says.
Plus: Puerto Rican singer gets an 'amazing' shout-out from Jennifer Lopez and Marc Anthony.
Hip-hop photographer recalls persuading rock-star duo and film mogul Harvey Weinstein to flash the Roc diamond, in Mixtape Daily.
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Kanye West and Kelly Clarkson also performed on the show.
Von Smith, Anoop Desai, Tatiana Del Toro included in wild-card round.