2013 Nathalie Aarts & Kim Lukas – Sad Girl
2013 Nathalie Aarts & Kim Lukas – Sad Girl After having worked together numerous times since 1999 for various promotional tours all over the world
2011 Nathalie Aarts & Kim Lukas – Breathe Again (Dancefloor Edit)
After having worked together numerous times since 1999 for various promotional tours all over the world and also in the project Girls Party with Neja they both became very close friends, often they would get mistaken as one or the other and from that moment they started to call each other ‘Sis’ like two real sisters!