Justine Berry born 1974 in Norwich  is a english singer song-writter and lead singer of the band M.A.S.S.

Justine was a finalist of the audition for the Spice Girls back in 1994 but missed the band at the last audition.

The lineup of the group M.A.S.S comprised Justine Berry (vocals), Jonny Green (guitar, vocals), Andy Miller (guitar), Paul Hegland (bass) and Stuart McMillan (drums). In early 2002 they independently recorded their debut single "Hey Gravity", which was subsequently licensed to Radiate Records and released in July 2002

By the end of 2005, before the album was completed, guitarist Green had left the band. After continuing as a four piece, an entry on the band's official blog announced on 22 March 2006 that M.A.S.S. were no more [1]. Having recruited a new guitarist in the shape of Anna Hall, the band changed their name to Hey Gravity! The unreleased recordings for the second M.A.S.S. album were completed and became their debut, entitled "Risen". It was released on Dad Records in France in February 2007.

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