Lalita, Hans Jürgen & the Kids Yoga Teacher Training Group are singing the song in German "Erde mein Körper":
Erde mein Körper,
Luft mein Atem
Wasser mein Blut
und Feuer meine Seele
Translated you can sing also: „Earth my body, air my breath, water my blood and fire my spirit.”
There are many english yoga seminars every year in the different ashrams of Yoga Vidya. You can find them all by clicking here.
You can get to other mantra's here.