There is more than one artist with this name, including:
1) Neev is an American post-hardcore band from Memphis, TN;
2) Neev is Portuguese singer Bernardo Neves;
3) Neev is British singer-songwriter Niamh Katherine Downes.

1) Neev is an American post hardcore band from Memphis, TN that was founded in July 2013. The band consists of ex-members of Close to Me, Greyscale, Looking for Alaska, Siddhartha, and Stepsister.
On May 30, 2014, Neev released their first full-length entitled Those Things We Tomorrowed on Little L Records, an independent record label based in Ireland. The album is available to stream/buy here: http://goo.gl/Rg0LGa.
On June 3, 2016, Neev released their second full-length entitled No One Wants to Sing. The album is available to stream/buy here: http://neev.cc/album/no-one-wants-to-sing.

2) Neev is Portuguese singer Bernardo Neves.

3) Neev is British singer-songwriter Niamh Katherine Downes originally from Glasgow currently based in London.
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