Tatsavitur Varenium Bhargo Devasya Dheemahi
Dhiyo Yo Nah Prachodayat
The Gayatri Mantra is
Peppy Gayatri Mantra
This version of the mantra is different from the one I learned and the version I use in class but it's happy and easy to learn. If learning chants is something that resonates with you repetition is the key. Repeat mantras hundreds of times until they become part of you.