The I Want It That Way hitmaker, who is a devout Christian, was joined by his wife Leighanne Wallace as they received the religious blessing.

Littrell is currently embarking on the In a World Like This Tour with the boy band and as they travel he has been documenting his tourist activities around religious hotspots on

The singer posted an image of himself and Wallace wearing white gowns while immersed in water, adding the caption, "Leighanne and I were baptized in the Jordan river yesterday... Another amazing experience..."

Backstreet Boys conclude their tour in Mexico next month (Jun15).