Herlovsen was the youngest player at UEFA Women's Euro 2005 and became the youngest goal-scorer in the tournament's history on 9 June 2005 when she scored a goal in a 1–1 draw against France.
Herlovsen var den yngste spiller ved EM i fodbold for kvinder 2005 og blev den yngste målscorer i turneringens historie den 9. juni 2005, da hun scorede et mål i en uafgjort 1–1 kamp mod Frankrig.