"Love to all the lambily!!! #WWLD," Carey captioned the photo, in which she's holding a stuffed lamb -- a nod to her affectionate nickname for her fans.
Carey also tweeted a photo of herself with husband Nick Cannon, 32, dressed up and heading out for the night.
Thanks for the best anniversary and wwld in all the land!!!! Us before the helicopter hair twitter.com/MariahCarey/st…— Mariah Carey (@MariahCarey) March 28, 2013