'I'm sh*tting my pants,' the singer joked on Twitter after receiving the surprise video.
Demi Lovato is having a very happy birthday.
The now 24-year-old singer received a whole lot of love on her big day, starting with the cast of The Walking Dead.
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Lovato took to Snapchat on Friday night to share a video of a few birthday messages she received from the cast of the hit AMC show, including Andrew Lincoln, Norman Reedus and Josh McDermitt.
"I got the best birthday video sent from the cast of the walking dead," she tweeted late Friday night. "And I'm sh*tting my pants."
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The "Body Say" singer had quite the celebration on the eve of her birthday, goofing off with friends at a bowling alley and indulging in some watermelon cake.
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Lovato kept the party going all night long, waking up in a bed of confetti.
The former Disney star was clearly excited for her special day.
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Lovato received birthday shout outs from a few famous faces.
The singer was naturally touched by all the birthday love. "So many texts/tweets/calls," she tweeted. "I feel so loved right now. Thank you guys!!!"
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Lovato clearly couldn't be happier, and the same was true earlier this month, when she got inked with a little smiley face on her pinky finger.
Check out Lovato's tiny tattoo in the video below.