As the Diocese of Portsmouth funeral guidance says:
“The use of music in the various stages of the funeral is important, and carefully selected hymns and music will enhance the service, bring back memories of a loved one and provide consolation for the bereaved.”
However, that doesn’t mean you can have any music or songs you like. Your priest will need to approve your family’s choice of music, and check that it is in line with the Church’s faith. That usually means only religious music before the mass, and ‘suitable’ non-religious music afterwards, but every priest has their own views.