" Young Girls " is a song by American singer-songwriter Bruno Mars. It was composed by Bruno Mars, Philip Lawrence and Ari Levine, Jeff Bhasker, Emile Haynie. This is according to the office of the Ambassador for Women and Girls, a non governmental organisation in Uganda. " Young Girls ". I spent all my money, bought a big old fancy car. For these bright- eyed honies. Oh, yeah, you know who you are. Keep me up 'til the sun is high.