In 2011, Van Giersbergen collaborated with Yoav Goren on the song "The Promise", the lead track on Globus second album "Break From This World". She co-wrote lyrics and, along with Lisbeth Scott, was a featured vocalist on the track. She performed the track "What Could Have Been" for death-doom metal band Novembers Doom. Van Giersbergen also features on a track in the orchestral re-interpretations album from English progressive rock band Anathema, "Falling Deeper", released on 5 September 2011. She toured with the band in South America, singing "Everwake" during concerts.