original song written by Simon Keizer, Gordon Groothedde and Nick Schilder, and performed by Nick & Simon

original song written by Simon Keizer, Nick Schilder, Bart Bremmers and Laura Beekman, and performed by Nick & Simon

Nick & Simon song

original song written by Simon Keizer, Jaap Kwakman and Jan Dulles, and performed by Nick & Simon

song written and composed by Simon Keizer and Gordon Groothedde; first recorded by Nick & Simon

original song written by Maaike Ouboter and Simon Keizer, and performed by Simon Keizer

original song written and composed by Simon Keizer and Jaap Kwakman; recorded and released in 2010 by Nick & Simon

original song co-written and performed by Jan Smit

Nick & Simon song