The "Made in the USA" singer arrived in Africa five days before her birthday. "Am I seriously in AFRICA right now?!!!?!??!?!" She tweeted on August 15.
According to Fox News Latino, Demi spent much of her volunteer time working in a field.
Demi received a surprise birthday cake, and the people in the community where she was volunteering also gave her a very unique present.
"Btw... No big deal or anything but... One of Maasai communities gave me a GOAT for my birthday!!!!!!" She wrote on Twitter.