WATCH: Fans Take Selfies With Mariah Carey's Photo And She Has A Singing Billboard In Las Vegas!

Mariah Carey is a pretty big deal. Such a big deal that fans pulled out their selfie sticks to take pictures of themselves standing in front of a photo of the singer!

Mariah is currently doing a residency at Caesar's Palace in Las Vegas, performing her 18 No. 1 hits for fans. Her memorabilia is all over Vegas, and there is even a singing billboard of her on the Las Vegas strip!

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Meanwhile, on Sunday night, Mariah took a break from her residency to perform at the 2015 Billboard Awards, and stunned in a sparkly silver gown.

Check out the video of Mariah's singing billboard and adoring fans above. Did you see her performance on Sunday night? Let us know in the comments section below.