In 2003 Josefsson took part in the recording of Per Gessle 's Swedish solo album '' Mazarin '' as a backup singer . Gessle 's '' Mazarin '' project actually became a defined solo band , with Gessle ( vocals and guitar ) , Clarence Öfwerman ( keyboards ) , Christoffer Lundquist ( bass ) , Jonas Isaakson ( guitar ) , Jens Jansson ( drums ) and Josefsson ( vocals ) . They have released another three albums since '' Mazarin '' , both in Swedish and in English , '' Son of a Plumber '' ( 2005 ) , '' En händig man '' ( 2007 ) and '' Party Crasher '' ( 2008 ) . Josefsson 's voice become more prominent in Gessle 's latest album , '' Party Crasher '' , as she sang leading vocals in some songs . They also toured Sweden during the '' Mazarin '' Sommarturne ( 2003 ) and the '' En händig man '' Sommarturne ( 2007 ) , and around Europe for " The Party Crasher Tour " ( 2009 )
The Party Crasher Tour
Party Crasher Tour 2009
Helena Josefsson