Before representing the UK at the song contest, where he came last, Newman co-wrote Rudimental and Ella Eyre's 2013 number one hit Waiting All Night.
It won best British single at the Brit Awards the following year.
Kelly-Marie Smith claimed the track was copied from a song she wrote in 2006. But a judge has dismissed her claim.
One half of The Voice UK duo Nu-Tarna, who appeared on the TV talent show in 2013, Smith sued Newman along with co-writer Jonny Harris and three members of Rudimental - Kesi Dryden, Piers Aggett and Amir Izadkhah.
