With the rising use of licensed popular music in video games, job opportunities in game music have also come to include the role of a music supervisor. Music supervisors work on behalf of a game developer or game publisher to source pre-existing music from artists and music publishers. These supervisors can be hired on a per-project basis or can work in-house, like the Music Group for Electronic Arts (EA) that has a team of music supervisors. A music supervisor is needed to not only help select music that will suit the game, but to also ensure the music is fully licensed in order to avoid lawsuits or conflicts. Music supervisors may also help negotiate payment, which for artists and songwriters is often a one-time buy-out fee, because games do not generate music royalties when they are sold. A growing trend is to contract artists to write original songs for games, to add to their value and exclusivity, and once again supervisors can be a part of that process.