Ariana Grande replaces Whitney Houston hologram on ‘Voice’

Ariana Grande has filled in for a hologram version of Whitney Houston in a duet with Christina Aguilera on the season finale of NBC's "The Voice."

Grande's performance comes days after the planned hologram appearance of Houston was scrapped due to technical reasons. The late singer's family said last week the hologram fell short of perfection and shouldn't air.

Instead, Grande joined Aguilera, one of show's celebrity coaches, in singing the title track off of Grande's new album, "Dangerous Woman" on Tuesday.

Former child actress Alisan Porter was crowned champion of Season 10 of the singing competition. Porter played the title role in the 1991 John Hughes film, "Curly Sue."

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